Ergonomic Office Chair - Enjoy personalized comfort with a detachable 2D headrest, adjustable 2D lumbar support and seat height, 3D flip-up armrests, and a reclining backrest. Its sleek, aesthetic design seamlessly blends with any decor. Breathable Comfort for Long Hours - Stay cool and supported with a breathable mesh high back and a soft sponge seat cushion, designed to keep you comfortable during long hours of use. Adjustable Lumbar Support - Enjoy tailored lower back support with 2D lumbar support that moves forward/backward and up/down. Easily fine-tune the fit to reduce lower back pressure and pain, ensuring all-day comfort. Great for work, gaming, or study.