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| Product | SMA Karman Ergonomic Chair |
| Headrest | 2D adjustable with 45° tilt (up/down) and height adjustment for optimal neck support. |
| Backrest | Slim profile measuring 49x60 cm, contoured to follow the natural spinal curve. Adjustable lumbar support with 5 cm height range. |
| Armrests | 3D adjustable armrests with height range of 60–74.5 cm. Can rotate left/right and slide forward/back. PU surface for added comfort. |
| Recline | Reclines up to 135°, with 3 lockable tilt positions for optimal posture and relaxation. |
| Seat Cushion | Full mesh seat pan for maximum breathability and support. |
| Mesh Material | High-quality imported Taiwanese mesh used across the headrest, backrest, and seat for durability and airflow. |
| Gas Lift | SGS-certified 3-level gas lift, 85mm travel distance. Seat height adjustable from 46–52 cm. |
| Chair Frame | Made from premium PP plastic, certified for professional office use. |
| Casters | PU wheels for smooth and silent movement. |
| Tilt Mechanism | Dual-spring control system for enhanced stability and fluid recline. |
| Chair Base | Polished aluminum alloy base with load capacity up to 500 kg. |
Karman ergonomic chair – premium features at an affordable price
Why choose the Karman ergonomic chair?
On the market for ergonomic chairs, finding a product that offers both a great price and premium features is not easy. Karman is the perfect solution, combining the most essential elements of a quality chair: breathability, comfort, durability, and safety.
At just over 2 million VND, the Karman chair offers full mesh construction, 3D headrest, 3D adjustable armrests, 135-degree recline, and a Class-4 gas lift—features typically reserved for higher-end models.
Highlights of the Karman chair
Class-4 gas lift – uncommon at this price point
While many chairs in this range only include Class-3 pistons, Karman takes it a step further with a more durable and stable Class-4 gas lift, supporting heavier loads and lasting longer—up to 1.5 times stronger than Class-3.
Full mesh design for airflow and comfort
The Karman chair uses high-quality imported Taiwanese mesh that enhances ventilation, reduces sweating, and is easy to clean. The dense, elastic mesh resists sagging over time and provides reliable support.
Slim ergonomic backrest with lumbar support
The backrest is designed to match the spine’s natural curvature and features a separate adjustable lumbar pad that can move up to 5 cm. This helps maintain healthy posture, reduces back pain, and supports long-term sitting comfort.
135-degree recline with 3 lockable positions
Karman supports a deep recline of up to 135 degrees, ideal for rest breaks. It also includes 3 recline lock positions, allowing you to easily switch between working and relaxing modes.
3-year warranty and easy replacement
The Karman chair comes with a 3-year warranty and 1-for-1 replacement in case of early-stage defects, offering peace of mind and long-term value.
Conclusion
At only 2,450,000 VND, the Karman ergonomic chair is a great choice for those who want quality on a budget. Its ergonomic slim backrest and contouring design help relieve spinal pressure, making it ideal for long hours of work or study.
Karman is a well-balanced combination of modern style and practical ergonomic features. It's not just a chair—it’s a smart investment in your health, posture, and productivity.
