SIHOO - C300 Computer Chair with Footrest，Gaming Chair with Soft 4D Armrests, Dynamic Lumbar Support and Swivel Office Chair - Basic - Gray

Stop fighting your chair. The C300 Pro V2 ergonomic office chair moves with you—lean forward to type, lean back to think, and the backrest follows your spine in real time. Whether you're crushing deadlines or deep in a game, this gaming chair keeps you supported without the stiffness. The self‑adaptive lumbar hugs your lower back like a second pair of hands, while the 3D wide headrest and 8D armrests melt away shoulder tension. Recline smoothly to 135°, lock in your favorite angle, and stay focused from morning coffee to late‑night gaming. Less pressure, more flow.

The SIHOO Ergonomic Office Chair delivers full-body support with four key contact points (head, back, hips, and arms) and adjustable lumbar reinforcement, designed to reduce discomfort during prolonged sitting. Ideal for users between 5'6" and 6'2", it features customizable seat height, headrest, and back support for personalized comfort. Perfect for home, office, or gaming, this versatile chair suits various needs while offering great value. Its breathable mesh backrest ensures airflow to keep you cool and focused. Built to last, it passes BIFMA certification and a 1136kg static pressure test, supporting up to 150kg, with easy assembly in just eight steps. Backed by a 30-day return policy and a 3-year warranty, we guarantee satisfaction—contact us for any issues, and we’ll provide free replacements or solutions.

The Sihoo Doro C300 Pro Ergonomic Office Chair redefines comfort with its multi-functional adjustable design, featuring a 3D headrest, adaptive lumbar support, ultra-soft 6D armrests (adjustable in five directions), seat depth adjustment, intelligent weight-sensing reclining mechanism, and breathable mesh fabric for all-day comfort. Its adaptive dynamic lumbar support moves with your body to relieve back pain, while the wider seat and 105°-135° recline range cater to taller users and relaxation needs. The height-adjustable backrest (with 2.36" travel) and flexible triangular frame provide continuous support as you shift positions. Certified by EU REACH, EN1335, German TUV, and US SGS BIFMA standards, this chair boasts 12 patents and a SGS-certified 4-stage pneumatic lift for durability. Backed by a 3-year warranty, we offer free replacement parts—experience next-level ergonomic support with the Doro C300 Pro.