Sihoo Doro-C300 Ergonomic Chair, 3D Armrests Swivel Chair, Adaptive Lumbar Support Office Chair, Ergonomic Desk Chairs for Adults, Comfort Home Office Chair, Gray

‌[Full-Body Ergonomic Support]: As a true ergonomic chair, it features a domino auto‑adaptive lumbar cushion that moves with your spine, while the 3D headrest adjusts vertically, horizontally, and angularly. The breathable mesh seat and backrest keep you cool during long sessions—whether you’re working from your home office or leading a conference. [3D Linkage Armrests & Multi-Tilt Mechanism]: The office chair’s armrests slide forward/backward, pivot rotationally, and sync with the reclining backrest. Combined with an intelligent gravity-sensing mechanism, the seat tilts smoothly between 92°–112°, perfect for quick breaks or focused gaming marathons. [Wide-Range Adjustable Backrest & Headrest]: This computer chair offers a 4-position height-adjustable backrest (up to 6 cm) and a 3D headrest that shifts 4.5 cm up/down, 6.5 cm forward/backward, and tilts 20°. Its triangular elastic frame supports shoulders to lumbar, accommodating users of all sizes. [Certified Safety & Durability]: Tested against BIFMA and TÜV standards, the chair includes SGS-certified Class-4 gas lift, reinforced base, and durable casters. It passes rigorous impact, caster, and leg-strength tests—ideal for daily use in busy office or gaming room environments. [Versatile Use Across Scenarios]: From all-day home office work to collaborative conference room meetings and immersive gaming station sessions, this desk chair adapts to your posture and space. The robust build and adaptive functions make it a smart investment for any setting.