SIHOO M59AS Ergonomic Office Chair, Desk Chair with 3D Coordinated Flip up Armrests, Computer Dual Back Design and Adaptive Dynamic Lumbar

【3D Coordinated Armrest】SIHOO M59AS's armrests are not only adjustable from front to back and left to right, the linkage design also allows the chair to provide perfect support for your arms at any tilt angle.The PU skin-friendly material provides you with a comfortable touch, so you can have a cozy experience whether you are working or studying or resting and relaxing. 【80° Flip-up Armrest】The armrests of this desk chair are designed to flip 80° and can be placed underneath your desk to save space, or provide you with more space while you play your guitar, saving space while providing you with more space. 【Double Back Design and Adaptive Lumbar Pillow】The back of this ergonomic office chair is designed with double backs, separated backs, which fit your back curve better, and adaptive lumbar pillows, which can be adjusted automatically with the movement of your body, and provide continuous support for your lumbar area no matter what kind of sitting position you are in. 【Saddle Shape Cushion】 The wide cushion of this computer chair adopts saddle shape design, which fits the curve of the buttocks and legs, effectively relieves the sitting pressure, provides effective support and does not cause pressure on the legs at the same time, high-quality dragon mesh, comfortable and durable, ventilated and breathable, and will not feel stuffy when sitting for a long time. 【High Quality Mesh Office Chair】SIHOO M59AS Mesh office chair has been certified by BIFMA and SGS and passed the hydrostatic pressure test of 1136 kg. Our office chairs can withstand up to 150 kilograms. If you have any questions, please feel free to contact us.

Experience next-level comfort and support with the SIHOO M59S Ergonomic Office Chair. Engineered for prolonged sitting, its innovative dual back design features two separate backrests that perfectly adapt to your spine's natural curve. Paired with our adaptive dynamic lumbar support, it automatically adjusts to your movements, delivering continuous and personalized back support in any sitting position.The wide, saddle-shaped seat cushion is expertly contoured to reduce pressure on your buttocks and legs. Crafted from durable, breathable dragon mesh, it ensures exceptional comfort without heat buildup. For ultimate flexibility, the 3D coordinable armrests adjust front-to-back and left-to-right. They can even be flipped up 80°, allowing you to slide the chair neatly under your desk to save valuable space.Built to last, this high-quality mesh chair is BIFMA and SGS certified, having passed rigorous safety tests including a 1136kg hydrostatic pressure test. It reliably supports users up to 150kg. With fully adjustable lumbar support, headrest, and height, the M59S is the perfect, ergonomic solution for your office, providing unparalleled comfort for work, learning, or relaxing.