About Hbada Products

Conventional office chairs only offer "static support," requiring you to adjust the chair to your body. Hbada chairs, on the other hand, feature the industry's first AI Bio-Synchronized technology, which automatically tracks your movements in real-time. Our patented AI-tracking lumbar support system provides support that conforms to the natural curve of your spine, whether you're leaning forward to type or reclining to relax.

Choosing Hbada means investing in tools for productivity and health. Here are the main benefits:

1) Reduced physical fatigue: Significantly reduces strain on the lumbar vertebrae (L4-L5).
2) Personalized fit: AI auto-adjustment to fit various body types.
3) Thermal comfort: High-density mesh material ensures breathability, preventing stuffiness even after long periods of sitting. There are many more great features. Please see for yourself.

The problem with traditional mesh: The "Hammock Effect"

Many ergonomic chairs use common two-way stretch mesh. While it has some flexibility vertically, it lacks elasticity horizontally.

As a result, when you sit, the mesh acts like a hammock. It becomes taut, creating hard, localized depressions.

This causes your weight to be concentrated on very limited "pressure points," such as the ischial tuberosities and outer thighs. Because the contact area is very small, this concentrated pressure can lead to numbness and fatigue within just 30 minutes of sitting.

Our solution: Four-Way Adaptive Weave

We developed a superior four-way stretch mesh that stretches in all directions.

By weaving highly elastic nylon fibers into both the warp and weft, this mesh is designed not just to sag under weight, but to react and conform to your body shape.

When you sit, the mesh gently sinks vertically, cushioning your body, while also stretching horizontally to softly "cradle" your thighs and hips. This significantly increases the contact area and effectively distributes your weight.

The result? A significant reduction in pressure per unit area. Our internal tests confirm that the four-way weave improves pressure distribution performance by 21.5% compared to standard two-way mesh.

Guideline for Ideal Seat Depth

The key to comfortable seating is to firmly support your back without putting too much pressure on your legs. When sitting, your buttocks should be firmly against the backrest, and there should be a gap of 2-3 fingers, or about 5-7 cm, between the front edge of the seat and the back of your knees.

How to Adjust Seat Depth to Suit You

1. Sit in the Correct Position
   Straighten your back naturally, push your hips all the way back, and firmly lean against the backrest.
2. Adjust the Seat Depth
   Adjust the seat depth using the cable-style lever located under the seat. This product supports a 50mm seat depth adjustment.
   Slide the seat forward or backward until the front edge of the seat is slightly in front of the back of your knees. The ideal position is where you don't feel any pressure behind your knees.
3. Check with the "Finger Test"
   Check if your fingers can comfortably fit between the back of your knees and the front edge of the seat. If you don't feel cramped and your entire thigh is naturally supported by the seat, then the seat depth is correct.

Yes, it is adjustable. 4-way dual-axis headrest: Support that conforms to each individual's neck

Hbada's 4-way dual-axis headrest features a wide range of adjustability, designed to accommodate various neck and spine conditions, including tech neck and minor postural imbalances.

Finely adjustable points:

• Height (40mm adjustment range): Easily adjust to the optimal height for your neck length.
• Depth (70mm adjustment range): Finely adjust the distance from your neck to your preferred closeness or distance.
• Angle (independent 2-axis, 70° each): Two independent rotation axes allow for free multi-directional adjustment. Finely adjust tilt, direction, and rotation to find the position that most naturally and gently supports your head.

How to address each condition:

• For "tech neck" (forward head posture): Extend the headrest forward and adjust the angle so the cushion fits snugly at the base of your skull. You get the necessary support without unnaturally forcing your head into a fixed position.
• For straight neck or kyphosis: Set the headrest slightly higher than standard and adjust the angle to avoid sensitive bony prominences (spinous processes). This allows for a softer, pressure-distributed contact.
• For minor left-right asymmetry: The dual-axis rotation function allows you to set the cushion at an asymmetrical angle, reducing pressure imbalance on the left and right sides of the neck.

Important Notes:
This product is an ergonomic chair, not a medical device. If you have a severe spinal condition, please consult your physician or physical therapist for professional guidance and utilize this product as part of your treatment plan.

Five Features Supporting the E3 Ultra

1. Active Spine Tracking
The 3-zone floating wing and 8-way adjustment system aren't just there; they actively follow your movements like a hand. Whether you recline, lean forward, or twist your body, they actively track your spinal movements, always providing firm support around your lower back. No more gaps in lumbar support or uncomfortable pressure.

2. Gravity Sensing Recline
No more manual dial adjustments. The weight-sensing chassis automatically adjusts the recline tension the moment you sit down. Whether you weigh 45kg or 136kg, the perfect balance is instantly found.

3. Adapts Freely to Any Situation
Whether you need to concentrate on work or take a short nap, the E3 Ultra makes it possible. With a maximum recline of 140°, 4-stage lock, and 720° rotating mechanical armrests, you can seamlessly transition from office work to relaxation time.

4. Durable Design for Long-Term Use
Durability is our commitment. The 4-way stretch mesh is treated to reduce UV degradation by 56% and is combined with a robust steel base that significantly exceeds BIFMA international standards. It's not just designed to last; we pursued even greater durability.

5. Precisely Engineered to Fit Any Body Type
Based on thousands of body type data points, we've derived the optimal structure. With 50mm of seat depth adjustment, 80mm of backrest height adjustment, and 70mm of armrest adjustment, the E3 Ultra provides a custom-fit feel. From petite individuals to those with larger builds, everyone can find their perfect support.

In summary: Other chairs expect you to adapt to them. The E3 Ultra adapts to you.

An ideal combination.

While the E3 Pro may look like a serious ergonomic office chair, its performance in gaming scenarios surpasses that of traditional "bucket-seat" gaming chairs. It offers the perfect combination of support and freedom of movement that hardcore gamers demand.

720° Omnidirectional Mechanical Armrests: A true game-changer for gamers who play mobile games or use controllers. The armrests move with your body, allowing for height, depth, and angle adjustments, as well as联动 with recline and the ability to fully flip up. Whether you're playing on a PC for long hours or leaning back with a controller, you can adjust the armrests by raising or rotating them to comfortably support your elbows. This is the most effective way to prevent shoulder and neck stiffness from prolonged play.

Gravity-Sensing Chassis: Instantly switch from "battle mode" to "relaxation mode." Gaming is fast-paced and dynamic, and your chair should react accordingly. The self-weight sensing system automatically adjusts the recline tension the moment you sit down. You can smoothly transition from a focused upright posture to a maximum 140° recline without having to fiddle with dials. It's also perfect for quick breaks between matches.

CloudFeel Pressure-Relief Mesh: Stay cool and focused. Long, immersive gaming sessions can get stuffy, but with the E3 Pro, you'll always feel refreshed. The four-way stretch mesh with CloudFeel technology not only distributes your weight but also "breathes" effectively. Even after intense, prolonged play, you'll stay cool and dry, maintaining your concentration on the game.

3-Zone Adaptive Lumbar Support: Dynamically adapts to even the slightest movements. When you're "in the zone" and focused, your body is constantly making small movements. The 3-zone lumbar support features 32mm of adaptive depth adjustment and 30mm of vertical slide, functioning like a real-time spinal tracking system. It maintains a firm fit around your lower back, providing stable and reliable support even during the most intense gameplay.

Summary: The Hbada E3 Pro blurs the lines between work and play. Unlike restrictive and stuffy racing-style chairs, the E3 Pro combines excellent skeletal support with a wide range of motion. You can keep playing at your best, round after round.

The E3 Ultra is Hbada's offering for those who demand adaptability in all situations. The wide range of adjustability we aimed for is not just a "feature," but our way of staying close to diverse body types and evolving work styles.

1. Accommodates a wide range of body types: Fits heights from 155cm to 195cm

We have eliminated the restriction of "uniform sizing" that is common with conventional office chairs. With a backrest height adjustment of 70mm, seat depth adjustment of 50mm, and a 4-axis dual-axis headrest, the E3 Ultra is designed so that "the chair adapts to you" rather than "you adapting to the chair."

For taller individuals (supports up to 195cm / 136kg): The sturdy steel 5-star base and Class 4 gas lift provide solid stability. The weight-sensing chassis ensures smooth and balanced support during recline, even for heavier individuals.

For petite individuals (supports from 155cm): Fine adjustments to the backrest and seat depth allow your feet to rest firmly on the floor, providing ideal lumbar support. You won't "get lost" in the chair.

2. Dynamic Adaptability: For those who multitask

For those who frequently switch between focused work and short breaks, the E3 Ultra's two unique technologies come into play.

2D Auto-Tracking Lumbar Support: With 32mm of automatic adjustment depth and up/down sliding function, the lumbar support follows your body's movements. Whether you're leaning forward to type or leaning back to brainstorm ideas, it stays with you like a shadow, filling the gap in your lower back and preventing strain.

720° Omnidirectional Armrests: Designed for those who use multiple devices. With 20° flip-up functionality and dual-axis rotation, you get the necessary elbow support whether you're typing on your smartphone, reading on your tablet, or working at a lower desk.

3. Stress-Free Operation: At your fingertips

The E3 Ultra uses cable-operated controls, eliminating the need to fumble under the seat. For those who want to instantly switch to a deep 140° recline, this intuitive operation seamlessly connects high productivity with instant refreshment, maintaining your workflow without interruption.

In conclusion: For those who seek precise skeletal support, are between 155cm and 195cm tall, and frequently switch between typing, smartphone, and tablet operations, the E3 Ultra offers a customized sitting experience that supports your daily performance.

The L4-L5 lumbar vertebrae are the most heavily loaded part of the human spine and are a particularly common cause of chronic lower back pain. Hbada's lumbar support system achieves precise decompression design through two technologies: "multi-zone tension management" and "vertical position adjustment."

First, the 3-zone lumbar support combines different materials to achieve both structural support and muscle relaxation. The central part uses high-tension mesh to firmly support the L4-L5 lumbar vertebrae, maintaining the spine's natural curve and preventing long-term spinal deformation caused by slouching. Meanwhile, the left and right wing sections use three-dimensional molded foam and soft synthetic leather to gently cradle and relax the erector spinae muscles, fundamentally distributing the load on the lower back.

Next, recognizing that spinal positions vary among individuals, a 50mm height adjustment feature allows for fine-tuning of the support position for people ranging from 155cm to 195cm tall. This makes it possible to precisely align the chair's support point with the L4-L5 lumbar vertebrae. This precise alignment is a prerequisite for effective pressure distribution; if the position is off, the lower part of the back will not be adequately supported, leading to localized fatigue.

Finally, to reduce the compressive load on the intervertebral discs, the lumbar support adopts a 26° "golden curve" shape. Combined with 4-way stretch mesh, this significantly increases the contact area. By transforming the vertical load, which tends to concentrate on the L4-L5 area, into a soft, surface-distributed force, compression on the intervertebral discs is reduced, addressing chronic lower back strain caused by prolonged sitting.

What Hbada aims for is not merely back support. By creating dynamically adaptive support for this particularly delicate part of the spine, the L4-L5 lumbar vertebrae constantly receive optimal support, even as posture changes throughout the day.

The 4D armrest system is more than just multi-directional movement. It's designed to address the root causes of repetitive strain by ergonomically balancing the elbow, desk, and shoulder.

First, it reduces the risk of carpal tunnel syndrome by keeping your wrists at a natural angle. Carpal tunnel issues often arise when wrists rest on the desk at an unnatural angle. The E3 Air's armrests offer 100mm of depth adjustment and 70mm of height adjustment, allowing them to perfectly align with your desk height. By providing solid forearm support, it keeps your wrists in a natural, horizontal position, preventing continuous pressure on nerves from mouse and keyboard use.

Next, it shortens the lever arm on your shoulders and relieves trapezius tension. With fixed armrests, you often have to shrug your shoulders or slouch to reach your mouse. The E3 Air's 360° rotation allows you to angle the armrests inward, aligning them with the natural position of your elbows. This keeps your upper arms relaxed and closer to your torso, significantly reducing the strain on your shoulder muscles that support them, leading to a reduction in chronic shoulder stiffness and trapezius tension.

Finally, the 40° recline-syncing function provides dynamic support. With many chairs, armrests remain fixed when you recline, leaving your elbows suspended. The E3 Air's armrests automatically adjust their angle in conjunction with the backrest. Whether you're leaning back to contemplate or taking a short break, your arms are always fully supported in any posture, protecting your neck and shoulders from sudden gravitational pull.

Through precise height adjustment, inward angle adjustment, and dynamic tracking, the 4D armrest system consistently provides firm arm support and minimizes shoulder strain, helping to protect your body from chronic work-related stress.

Rest assured. Hbada's E3 and X7 series are designed with excellent adaptability to comfortably fit people of all body types.

The following ranges of compatibility have been achieved through extensive and rigorous testing.

Height Compatibility: 155cm - 195cm
With an 80mm backrest height adjustment and a 50mm seat depth adjustment, along with independently adjustable headrest, lumbar support, and armrests, the design ensures "the chair adapts to you" rather than "you adapting to the chair." Whether you are petite or tall, you can fine-tune each contact point to achieve proper neck support, lumbar support, and ensure your feet are firmly on the floor.

Weight Capacity: Up to 136kg (approx. 300 lbs)
Safety and stability are our top priorities. The entire series is equipped with SGS-certified Class 4 gas cylinders and reinforced steel and aluminum alloy 5-star bases as standard. All parts have passed rigorous tests based on BIFMA standards, including a 1,136kg static load test. You can experience unwavering and stable support whether you're concentrating on work or relaxing with a deep 140° recline.

Fundamental Differences: Active Ergonomic Support vs. Clinical Treatment

This is a fundamental difference in function. Hbada's ergonomic technology falls within the realm of "preventative wellness care," aiming to maintain spinal health through daily dynamic support. In contrast, clinical traction therapy is a medical intervention for existing symptoms.

1. Purpose: Daily Care vs. Clinical Treatment Intervention

Medical Traction: A clinical treatment for existing symptoms that forcefully widens intervertebral spaces using strong external physical force. It is primarily used for severe disc herniation and nerve compression and must always be performed under professional supervision for a short, limited duration.

Hbada's Dynamic Support: Aims to maintain the natural alignment of the spine. The 3-zone adaptive lumbar support continuously fills the gap in the lower back throughout an 8-12 hour workday, maintaining the spine's natural "S-curve." The purpose is purely preventative, aiming to provide care before spinal stress accumulates.

2. Mechanism: Passive Traction vs. Active Pressure Distribution

Medical Traction: A passive and forceful vertical stretching method that can cause discomfort and constriction during use.

Hbada's Dynamic Support: Employs dynamic pressure distribution. The 26° "golden curve" shape and CloudFeel mesh work together to distribute concentrated body weight across the entire back and buttocks. This significantly reduces localized pressure on the L4-L5 area. The support is soft and consistent, gently caring for muscles and bones while maintaining a natural, active posture.

3. Usage: Gradual Rehabilitation vs. An All-Day Partner

Medical Traction: A strict, step-by-step treatment method that cannot be used in parallel with daily tasks.

Hbada's Dynamic Support: Essentially "daily care you get just by sitting." Whether you're typing, in a meeting, or on a break, the chair constantly adapts to your posture. Features like the X7's 8D bionic massage, in particular, help relieve tense muscles around the waist, like receiving a professional spa treatment every day, and prevent muscle fatigue from developing into long-term bone problems.

Our Recommendation:
If you have already been diagnosed with a spinal injury by a doctor, please strictly follow your doctor's instructions and use specialized medical equipment. On the other hand, if you wish to reduce daily stress on your spine, alleviate chronic lower back fatigue, and prioritize long-term health, the Hbada E3/X7 series offers an industry-leading solution for daily spinal care.

Four Golden Recline Angles: Perfect Comfort for Any Moment

We have set four "golden" recline angles to match the various scenes that change throughout your day. With intuitive lever or cable operation, you can lock into your ideal position with one click.

105° Focus Mode: Maximum Productivity and Spinal Alignment
Recommended for: Focused work, report writing, video conferencing
How it works: At this angle, your back is firmly pressed against the lumbar support, maintaining the natural "S-curve" of your spine. Keeping your center of gravity vertical minimizes fatigue and keeps your mind clear. This is the optimal position for long periods of focused work.

115° Entertainment Mode: Relaxed Immersion
Recommended for: Immersive gaming, reading, watching short videos
How it works: Your center of gravity shifts slightly backward, relieving vertical pressure on your lower back. Combined with the 4D/720° omnidirectional armrests, this allows for a wider range of free arm movement. You get solid arm support while relaxing.

130° Thinking Mode: Dynamic Pressure Relief
Recommended for: Meditation, long phone calls, watching movies
How it works: At this angle, the majority of your body weight is supported by the backrest and seat, significantly reducing the load on your intervertebral discs. Thanks to the auto-tracking sliding mechanism of the lumbar support, your lower back remains firmly supported at all times, making this the perfect position for brainstorming and creative thinking.

140° Power Nap Mode: Recovery in Zero Gravity
Recommended for: Napping at the office, late-night refreshing
How it works: Combined with the retractable footrest, this nearly horizontal angle guides your body into a completely extended "zero-gravity" state. This also promotes blood circulation, and when combined with the X7 series' 8D bionic massage, you can reset your energy and refresh from fatigue in just 15-20 minutes.

The 8D Bionic Massage System integrated into the X7 is truly a "game changer"—it brings a full-fledged massage chair mechanism into your everyday workspace. Unlike typical chairs that rely solely on simple vibrations, the X7 achieves an authentic deep tissue massage experience through three core differences.

1. Sensation: From superficial vibration to deep tissue kneading
Traditional massage: Primarily relies on superficial vibrations from simple motors, which may provide temporary relaxation on the skin's surface but fail to reach deep muscles, sometimes leading to numbness with prolonged use.

8D Bionic Massage: Utilizes a dual-core mechanism, with each massage head equipped with four independent pressure points mimicking human finger joints. Operating at an optimal speed of 30 rotations per minute, the pressure penetrates deep into the muscles, effectively relieving tension in the erector spinae and quadratus lumborum caused by prolonged sitting.

2. Operability: From manual positioning to automatic tracking
Traditional massage: Massage heads are often fixed or require cumbersome manual adjustments, frequently missing pressure points or causing discomfort by pressing against the spine.

X7 Intelligent Core: Features an automatic retraction mechanism. When activated, it expands to perfectly conform to the curve of your lower back, and when the massage is finished, it retracts completely into the backrest. In "work mode," the mechanism is entirely hidden, ensuring maximum comfort—it subtly provides support only when needed.

3. Intelligent Features: From passive function to active wellness support
Traditional massage: Limited to a passive function that would only work if you remembered to turn it on.

X7 Intelligent Assistant: Equipped with a "smart reminder" function every 45 minutes. When pressure sensors detect that you have been sitting for 45 minutes, the system automatically activates, gently prompting you to take a break and initiating a massage sequence to relieve tense muscles. This proactive support goes beyond mere massage, encouraging healthy sitting habits and helping to care for your lower back before strain accumulates.

E3 Air vs. E3 Pro: Upgrade Differences

Both the E3 Air and E3 Pro are designed to the high standards of the Hbada family, sharing a Class 4 gas lift and high-strength nylon frame. However, the E3 Pro takes operability and adjustment smoothness to the next level. The four main differences are:

1. Lumbar Support: Manual Precision Adjustment vs. Dynamic Automatic Tracking
E3 Air: Features classic multi-stage manual adjustment. You can lock in your preferred support intensity.
E3 Pro: Equipped with automatic tracking lumbar support. In addition to height adjustment, the depth automatically adjusts according to the recline angle. Whether you're leaning forward to type or reclining back to relax, the lumbar support follows your spine's movement, continuously filling the gap in your lower back.

2. Armrests: Multi-Directional Adjustment vs. 720° Omnidirectional Arms
E3 Air: Standard 4D adjustable armrests cover most common office postures.
E3 Pro: Upgraded to 720° omnidirectional adjustable armrests. This provides a wider range of motion, accommodating extreme angle adjustments and a broad height adjustment range. It's perfect for special uses such as mobile gaming, controller operation, or typing at low desks.

3. Reclining Feel: Standard Mechanical vs. Gravity-Sensing Chassis
E3 Air: The stable and reliable mechanical chassis provides smooth, standard reclining.
E3 Pro: Upgraded to a gravity-sensing chassis. This system automatically calibrates the reclining tension based on your weight. Regardless of your physique, you can enjoy balanced reclining from the moment you sit down, with no need for manual tension adjustment.

4. Operation Method: Traditional Lever vs. Fingertip Cable Control
E3 Air: Features a classic and easy-to-understand side lever. Its clear functions and long-lasting durability are appealing.
E3 Pro: Upgraded to an integrated cable control system. Height and recline lock are operated by stylish paddles on the side of the seat. This eliminates the need to reach or bend, providing a more comfortable and premium operating experience with just a fingertip.

Many chairs on the market claim to be "smart" simply by replacing a manual lever with an electric button. The Hbada X7 sets itself apart – it is built on genuine intelligent tracking technology, consisting of four technological pillars.

1. Millisecond-level Sensing: A Chair That Moves With You
Technology: Equipped with Hall effect magnetic sensors that react in microseconds and automotive-grade processing chips, the X7 performs 1,000 feedback calculations per second.
Health Benefits: With a response speed hundreds of times faster than standard resistive sensors, the lumbar support instantly detects changes in posture such as leaning forward, sitting upright, or reclining. It maintains a seamless fit in real-time without manual adjustments.

2. PID Dynamic Correction Algorithm: Personalized Support for Everyone
Industry Challenge: Traditional lumbar support often failed to provide sufficient counter-pressure for heavier individuals, while feeling too stiff and uncomfortable for lighter individuals.
Precise Adjustment: Hbada's proprietary PID algorithm allows for 10 levels of pressure adjustment, accommodating individuals weighing up to 150 kg.
Recommended Settings: For individuals under 75 kg, levels 1-5 are recommended. For those between 75 kg and 150 kg, levels 6-10 provide a good balance of firm support and comfort.

3. Military-Grade Hardware: Robust and Exceptionally Quiet
Quiet Operation: High-precision linear motors and military-grade POM gears keep operation noise below 40dB – quieter than a library. It won't disturb late-night work sessions.
Safety Lock: Features a self-locking mechanism that withstands a static load of 300N. Even in the event of a power outage, the lumbar support firmly holds its position and will not shift under 100 kg of pressure.

4. Deep Muscle Care: Proactive Spinal Wellness
Unique Design: The three-zone lumbar support is specifically designed to target three muscle groups: the erector spinae, quadratus lumborum, and multifidus muscles.
Health Benefits: By dynamically tracking spinal movement, the X7 gently expands the vertebrae while supporting surrounding muscles, effectively reducing pressure on the intervertebral discs. More than just a chair, it acts as a dynamic "spinal concierge," addressing chronic lower back fatigue caused by prolonged sitting.

We've created a color palette that naturally blends into any interior, from corporate offices to modern, minimalist home studios.

E3 Series: Three Colors to Complement Any Style

The E3 series offers three classic colors to suit a wide range of tastes.

Obsidian Black: Sophisticated and reliable, conveying a professional impression. Perfect for office environments that require concentration.
Frost White: Minimalist and elegant. Brightens up a space and adds a modern touch.
Sakura Pink: A soft and華やかな presence, recommended for those who want to add personality to their private spaces.

(*E3 Ultra is currently only available in Obsidian Black and Frost White. Please look forward to new color additions!)

X7 Series: The Quintessence of Minimalist Luxury

The X7, our intelligent flagship series, embodies the "Less is More" philosophy with two high-quality, timeless colors.

Rock Black: A strong and refined presence that creates a high-tech aesthetic and executive feel.
Moonrock White: A pure and pristine presence. Blends naturally into modern and minimalist interiors.

While the Hbada S-curve backrest may be misunderstood as a departure from the standard split-back (separate lumbar) design, it actually evolves that design philosophy to a higher level. Through precise curve control and advanced adjustment mechanisms, it resolves the issues of "instability" and "lack of fit" often seen in conventional split-back chairs.

1. Structural Stability: Rigorous Testing for Long-Term Durability

We make no compromises on structural strength. The backrest has undergone 120,000 reclining durability tests and meets stringent BIFMA international standards. This thorough testing ensures that even after years of frequent adjustments and reclining, it maintains the same firm rigidity as on day one, completely eliminating the wobbling and unpleasant creaking noises common with low-quality products.

2. Precise Stability: The 26° "Golden Curve"

Conventional split lumbar supports tend to be flat, often creating localized pressure points rather than providing effective support. We have optimized the bionic curve and adopted a 26° "Golden Curve" shape. This specific angle significantly increases the contact area with the lower back. By shifting from "point support" to "surface support," dynamic stability is dramatically improved during prolonged sitting, allowing you to lean back firmly without feeling the instability caused by unsupported gaps.

3. Adjustable Stability: Multi-directional Interlocking System

To align the chair's center of gravity with your body, we employ a precisely adjustable multi-directional system. Whether you are petite or well-built, fine adjustments to the headrest and lumbar support allow the chair's structural center of gravity to be precisely aligned with the natural S-curve of your spine. This creates a stable and perfectly fitted sitting experience, no matter how you move.

Summary:

Compared to chairs with standard split backrests, Hbada's bionic S-curve design offers a more scientific and high-performance solution. By combining BIFMA-certified high durability with an optimized shape and precise ergonomic design, we have set a new industry standard for split-back chairs.

Hbada combines structural rigidity with high-performance composite materials, based on an "aerospace-grade" design philosophy. Both the X7 and E3 series inherit Hbada's common high durability, but their material compositions are progressively designed to achieve the highest class of reliability and safety commensurate with their respective price points.

1. Basic Specifications: Common Quality Standards

Regardless of whether it's the E3 or X7 series, we never compromise on core safety and tactile comfort. The following are standard specifications common to both series:

Core of Safety: All chairs are equipped with SGS-certified Class 4 gas cylinders, providing smooth and reliable height adjustment and industry-leading explosion-proof performance. The overall structure meets strict BIFMA international standards, ensuring peace of mind for 10 years of use.

Tactile Comfort: The armrest surfaces are made of high-grade PU leather, offering both softness and abrasion resistance. The lumbar contact areas use high-quality synthetic leather, providing a skin-friendly and supple feel.

Quiet Casters: The casters are made from a hybrid material combining PU and PA. They maintain high load-bearing capacity while offering excellent quietness and protecting floors from scratches.

2. Gradual Evolution: Structural Precision

Frame and skeletal materials are also progressively designed according to performance differences.

You have absolutely nothing to worry about. To address the issues of "stuffiness" and "lack of breathability" that are particularly concerning during long hours of desk work, the entire Hbada E3 series and the X7 feature a CloudFeel breathable seat cushion designed for extended use, fundamentally solving the problem of heat buildup.

1. Air Circulation Design
Unlike urethane cushions, which tend to trap heat and absorb sweat, the CloudFeel cushion utilizes advanced micro-perforated knitting technology. This structure creates a natural airflow, establishing a micro-circulation system between your hips/back and the seat, quickly dissipating body heat generated during prolonged sitting. Even on hot summer days or during long meetings, you can maintain a dry and refreshing sensation.

2. Four-Way Stretch for Pressure-Free Support
The reason many chairs feel stuffy is that the mesh lacks sufficient support, causing the user's hips to sink deeply into the seat and reducing the area exposed to air. Hbada's four-way stretch knitting technology improves elasticity by 83%, providing firm support that allows the body and the mesh surface to consistently maintain an optimal contact angle. This increases airflow and provides a physical cooling effect.

3. High Durability Minimizes Performance Degradation
A 1,000-hour UV resistance test confirmed a 56% reduction in performance degradation. This means that the mesh will not sag or stick to your body due to prolonged heat or use, and will maintain the same breathability and support as when it was manufactured, for a long time.

Summary: Whether in a high-intensity office environment or an exciting gaming session, the CloudFeel breathable seat cushion promises a fresh sitting experience all day long, free from stickiness and stuffiness.

Not just an option, but a core ergonomic module

In high-end ergonomic design, a footrest is not just an optional accessory, but a critical module for taking care of your body throughout the day. Here's how it changes your sitting experience from three perspectives:

1. Zero-gravity recovery (nap mode)
When the backrest is reclined to its maximum angle, the pull-out footrest helps you transition to a nearly horizontal, fully extended posture. This design evenly distributes your body weight across the entire chair, reducing strain on your spine and preventing blood from pooling in your lower limbs. Your office chair transforms into a true resting space, almost like a bed.

2. Promoting blood circulation (fatigue relief)
Sitting with your legs down for extended periods can cause blood to pool in your lower limbs, leading to leg fatigue and heaviness. By elevating your legs with a footrest, you can use gravity to promote venous blood flow. This is effective in preventing the "heavy, tired legs" feeling caused by prolonged sitting.

3. Comfort for every situation
With a footrest, your chair goes beyond just "work." Whether you're contemplating, relaxing with mobile games, or enjoying videos at your desk, a footrest allows for a more open and relaxed posture. You can seamlessly switch between focused work and moments of rest, without your feet dangling.

Choosing tips:
If you have a habit of napping at the office or sit for more than 6 hours a day, a model with a footrest is highly recommended. It significantly changes your comfort level, turning your workspace into a private resting area where you can refresh anytime.

The CloudFeel Breathable Seat Cushion is a technological innovation in material science from Hbada, specially designed for larger individuals and those who work at a desk for long periods. It fundamentally surpasses traditional standard mesh in four key areas:

1. Superior Pressure Distribution (4-Way Stretch)
Most common meshes stretch only horizontally, often leading to uneven support. Hbada's 4-way stretch weaving technology allows it to stretch both vertically and horizontally, conforming flexibly to the body's shape like a palm and evenly distributing pressure on the hips and thighs. Internal tests have confirmed a 21.5% improvement in pressure distribution performance, significantly reducing numbness and fatigue often caused by prolonged sitting.

2. Enhanced Rebound (83% Increase in Elasticity)
To address the issue of mesh "sagging" after prolonged use, we have significantly reinforced the support strength. Tests show an 83% improvement in elasticity compared to conventional models. This provides sustained support with firm rebound, ensuring that the seat surface maintains its flexible elasticity without sagging, even for heavier individuals.

3. Exceptional Durability (Designed to Resist Degradation)
This mesh is engineered for long-lasting use. After conducting 1,000 hours of UV degradation testing, we were able to suppress the performance degradation rate by 56% compared to standard materials. This investment in material science solves the common problem of "sagging," ensuring that the tension, support, and "CloudFeel" comfort remain as good as new, even after years of use.

4. All-Day Breathability (Active Air Convection)
The unique physical weave structure creates natural air pathways within the mesh, allowing air to circulate freely and continuously, quickly dissipating body heat. This ensures a cool and dry comfort that lasts all day, whether you're working intensely or engaged in long gaming sessions.

A defining Hbada feature: Cloud-Feel Mesh, standard on all models

The Cloud-Feel breathable mesh is more than just a component; it's a comfort technology that defines Hbada. To deliver a premium sitting experience across all models, it is now standard on the entire X7 and E3 series.

This decision reflects our commitment to providing uncompromising comfort for any use case.

Intelligent Flagship (X7): We've integrated Cloud-Feel mesh as the foundation supporting the entire intelligent system of the X7. While the AI-driven auto-following lumbar support stabilizes the spine, the four-way pressure-relief mesh further enhances seating comfort, delivering a multi-directional evolved experience that moves from rigid skeletal support to the soft, supple comfort of the surface.

Versatile Benchmark (E3 Series): By making this technology standard across the E3 series, we aim to solve common challenges of prolonged sitting—leg fatigue, numbness, and stuffiness—for a wider range of high-performing professionals.

Choosing an Hbada model equipped with Cloud-Feel mesh means getting a sitting experience that "goes beyond the standard." Designed to withstand 1,000 hours of UV degradation testing (56% reduction in degradation rate) and with 83% improved elasticity, this mesh sets a new industry standard for durability. Whether you choose the X7 for its cutting-edge intelligent features or the E3 for its versatile balance, we promise "cloud-like" comfortable support that remains consistent for years after your purchase.

For the Hbada X7 Series, a high-capacity 5200mAh battery is available as an option, allowing use both connected to a power source and completely wirelessly.

Cordless, Freely Anywhere: With a full charge, you can use your X7 in your home office or living room without worrying about the location of outlets or tripping over cords.

Full Functionality Intact: The battery capacity provides enough power to operate all advanced features without compromising performance. This includes AI dynamic lumbar tracking, lumbar massage, graphene heater, seat ventilation, and the "over-sitting" reminder every 45 minutes.

1.8m Magnetic Charging Cable: No more struggling to plug in cords like with traditional chargers. The X7 comes with a dedicated 1.8m magnetic charging cable that can be easily attached with one hand. This prevents wear and tear on the charging port and extends the life of your chair.

Two Power Modes: You can use the chair plugged into power while working, or unplug the cord after a full charge (approx. 5 hours) for complete wireless use.

Battery Lasts Approximately 3 Days: Equipped with a 12V/5200mAh lithium battery and an automatic standby function (automatically turns off 10 minutes after you leave the seat), it is very energy efficient. Even with high-load use such as 3 hours a day of lumbar tracking and seat ventilation, plus two 40-minute intense massage sessions, a single full charge can last approximately 3 days.

Reverse Charging Function (Power Bank Mode): The chair has a built-in Type-C output port, so in a pinch, the chair itself can function as a power bank, allowing you to charge your smartphone and other devices while you work.

If your chair isn't charging, don't worry. Please try the following steps first. In most cases (about 90%), this will resolve the issue.

Clean the magnetic connector: Check if there's any dust or small metal fragments on the magnetic cable and the charging port on the chair. Also, ensure the connectors are making proper contact.

Check the power outlet: Try plugging the charger into a different power outlet to confirm it's receiving power correctly.

Remove Type-C devices: Check the Type-C port on the side of the seat. If a device with high power consumption is connected, the overload protection function may activate, temporarily stopping the charging. Disconnect the device, then try again.

If the issue persists
If your chair still doesn't charge after trying the above steps, the internal power management system may need to be reset. For X7 users, priority support is available. Please contact our online customer support or call our support hotline. Our specialized team will assist you in resolving the issue with one-on-one remote support.

Yes, all X7 Smart Chairs come standard with a genuine 1.8m magnetic charging cable. There is no need to purchase additional accessories. Simply assemble the chair and attach the charging cable to enjoy all the cutting-edge features, including AI lumbar support, lumbar massage, and seat ventilation.

Exclusive Magnetic Design: This genuine charging cable is specifically designed for the X7. Its generous 1.8m length and magnetic technology ensure a stable connection while maintaining a clean, aesthetic appearance befitting your premium home environment.

There's a significant difference in mesh quality. While low-density mesh might feel fine initially, it tends to lose tension and gradually decrease in support within a few months. When choosing, it's recommended to select a high-elasticity, high-strength mesh with a clearly stated weave density. Good quality mesh provides firm support, yet only flexes slightly under your weight without sinking in.

While a soft, deeply cushioning seat may feel comfortable for the first 20 minutes, sitting on it for eight hours can lead to problems—your pelvis tilts backward, and your lower back loses its natural curve.

A cushion with moderate firmness, however, allows you to maintain your spine's natural alignment throughout your sitting period.

Urethane foam made from virgin materials (unused, new raw materials) tends to retain its shape longer than foam made from recycled materials.