WindeX Office Chair Brings Premium Functionality and Style to Home Workspaces

Tansu no Gen Co., Ltd., a furniture and interior e-commerce company based in Okawa City, Fukuoka, has released the WindeX OFFICE CHAIR. This new office chair combines the functionality of premium office seating with a refined design that seamlessly integrates into home interiors, featuring innovative 4D armrests and a sophisticated one-tone design aesthetic.
The product aims to make the essential features of high-end office chairs accessible for home use at an exceptional value. Designed for those seeking both the fatigue-reducing benefits of professional office seating and the aesthetic appeal of quality furniture for remote work environments, the chair incorporates ergonomic design principles, versatile 4D armrests that accommodate all body types, and exceptionally durable elastomer-infused mesh material to deliver comfortable support during extended desk work sessions.
Customizable Comfort with 4D Armrests

One critical factor affecting physical strain during prolonged desk work is arm support. Properly supporting both arms is key to releasing unconscious tension in the shoulders and neck—a feature previously found only in select premium chairs.
This product implements this essential functionality through its 4D armrests. The four-directional adjustable armrests enable precise customization to match each user's physique, desk height, and working posture.

Adjustment ranges:
- Vertical: 8cm
- Forward/Backward: 5.5cm
- Left/Right: 4cm
- Angle: 33°
This extensive adjustment capability allows users to position the armrests at their optimal location. By fully transferring arm weight to the chair, the system prevents unnecessary tension in shoulder and neck muscles, dramatically reducing stiffness and chronic fatigue accumulation.
Supporting this ultimate fit is the advanced mesh material employed in both the seat and backrest.
Elastomer-Infused Mesh: Durability Meets Comfort
The upholstery material that determines a chair's comfort and longevity uses proprietary high-performance mesh incorporating special polyester-based elastomer woven into polyester. This achieves an exceptional balance of durability and comfort that surpasses conventional mesh materials.

Outstanding Resilience Prevents Sagging
Elastomer is a polymer material with rubber-like elasticity. Incorporating it into the mesh creates robust resilience.
Even after supporting body weight over extended periods, this effectively prevents the fabric from stretching out and sagging, maintaining the appropriate tension and support of new condition for long-term use.

Comfortable Air Mesh Seat Design
The all-mesh construction, applying mesh material to both the backrest and seat surface, ensures exceptional breathability.
Body heat and moisture don't accumulate easily, suppressing discomfort from stuffiness even during summer or extended work sessions. The chair maintains a consistently fresh and clean seating experience, preserving a comfortable working environment.
This advanced material combines with an ergonomically designed frame to deliver maximum performance.
One-Tone Design Elevates Interior Aesthetics
The design philosophy behind this product aims to eliminate the traditional office chair's image as mere office equipment, pursuing completion as a piece of furniture.
The goal was to create a refined presence that enhances spatial quality even when placed in living rooms or study rooms.
The design adopts a one-tone aesthetic, unifying all components—mesh fabric, frame, armrests, and even casters—in matching colors.
This thorough color coordination reduces visual noise, presenting the entire chair as a harmoniously integrated object.
It enhances modern, sophisticated spaces without disrupting room atmosphere. Three distinct color variations are available to contribute to creating ideal workspaces.



Space Blue
Conveys an intellectual, sophisticated impression, creating a calm, professional atmosphere.
Haze Gray
A versatile color that naturally blends with any interior while remaining modern.
Projects a gentle, neutral ambiance.
Signal Red
An accent color that brings creative vitality and energy to spaces.
Placed in monochrome rooms, it becomes a commanding focal point.
This exceptional design merges with superior functionality supporting daily work scenarios, providing new value.
Ergonomic Adjustment Functions Supporting the Body
Beyond armrests and materials, the chair's entire structure is ergonomically designed to support users' bodies.
Abundant features maintain ideal posture across all scenarios, from focused work sessions to brief rest periods.

Ergonomic S-Curve Design
The frame designed along the spine's natural S-curve supports the entire back seamlessly.
This distributes strain on the lower back and buttocks, making it easier to maintain proper posture even during desk work prone to forward leaning.

Three-Stage Lockable Rocking Function
The backrest reclines up to 130 degrees.
Three lockable angles accommodate concentrated work mode (approximately 105°), relaxation mode (approximately 118°), and rest mode (approximately 130°).
An adjustable tension lever sets preferred resistance level, seamlessly switching between work and rest modes in a single chair.

Angle-Adjustable Movable Headrest
The headrest adjusts within a 19-degree range.
It firmly supports the head and neck in the most comfortable position, reducing strain on the neck muscles. It also provides optimal support when reclining.
A smart-design hanger on the backrest allows quick hanging of jackets or cardigans, storing them wrinkle-free and keeping the desk area tidy.
For comprehensive details on these features, please refer to the product specifications below.
Product Information
| Item | WindeX OFFICE CHAIR with One-Tone Design and 4D Armrests |
|---|---|
| Dimensions | External: W73 × D71 × H121 to 129cm, Seat height: 45 to 53cm |
| Weight | Approximately 16kg |
| Load capacity | Approximately 100kg |
| Materials | Frame: Polypropylene, Steel Upholstery: Mesh (Polyester, Polyester-based elastomer) Casters: PU |
| Colors | Space Blue, Haze Gray, Signal Red |



Sales Information
The WindeX OFFICE CHAIR is now available for purchase at Tansu no Gen's official online store and various e-commerce platforms.
For details and product pages:
- Tansu no Gen Official Store: https://www.tansu-gen.jp/products/31500061
- Tansu no Gen Rakuten Market Store: https://item.rakuten.co.jp/tansu/31500061/
- Tansu no Gen Yahoo Shopping: https://store.shopping.yahoo.co.jp/tansu/31500061.html