SIHOO - C300 Ergonomic Office Chair with Soft 3D Armrests, Dynamic Lumbar Support, Adjustable Backrest - Gray
Model: DORO-C300L-A3-002
SKU: 10958517
The SIHOO A3 office chair, an innovative ergonomic model, uses advanced technology to ensure comfortable sitting and proper posture. It features automatically adjustable 4D headrest, lumbar support, linked 3D armrests, an intelligent gravity mechanism, and automatic adjustment, along with a soft backrest and breathable mesh seat for all-day comfort. Its 3D headrest offers wide-angle adjustment (4.5cm up/down, 6.5cm forward/backward, 20° angle) and is made of soft mesh with a triangular soft elastic frame and support straps for back support; the 4-position adjustable 6cm liftable backrest suits all heights and auto-reverts to level 1 when at maximum height. It also comes with domino auto-adaptive lumbar support. The intelligent gravity mechanism with weight-adjustable resilience enables 2-step auto-adjustment and tilting from 92° to 100° to 112° (max), allowing comfortable rocking or short breaks. Certified by American BIFMA and German TUV, it has passed tests like backrest strength and seat impact tests, and is equipped with SGS Class 4 cylinders for durability and safety. It comes with a 3-year warranty, with support available for any product issues.
SIHOO's latest ergonomic office chair uses advanced technology to ensure comfortable seating and healthy posture. It features an auto-adjusting 3D headrest, adaptive lumbar support, synchronized 3D armrests, and an intelligent weight-sensitive mechanism. With a soft backrest and breathable mesh seat, it delivers lasting comfort even during long hours of use.
The SIHOO A3 office chair is BIFMA and TÜV certified, passing rigorous tests for backrest strength, seat impact, caster durability, and leg strength. It features an SGS-certified Class 4 gas lift for enhanced safety and comes with a 3-year warranty. Contact us with any product concerns for complete peace of mind.
The SIHOO A3 office chair features a 4D headrest that adjusts 4.5cm vertically, 6.5cm horizontally, and 20° in angle. Its triangular elastic frame with dual support straps cradles your back from shoulders to lumbar. The 4-position backrest adjusts up to 6cm in height and auto-resets when raised fully, fitting all users securely.
The SIHOO A3 features a 4D auto-adjusting headrest (4.5cm vertical/6.5cm horizontal/20° tilt). Its triangular elastic frame with shoulder-to-lumbar support straps and 4-position backrest (6cm height, auto-reset) ensures ergonomic comfort for all users.
The SIHOO chair's tilt mechanism is its core innovation. Its intelligent gravity system automatically adapts to any user's weight with 2-step adjustment. Recline seamlessly between 92°, 100°, and 112° for comfortable rocking or deep relaxation during breaks.