This ergonomic office chair is designed to combine breathable comfort with adaptable support, featuring an adjustable mesh backrest, responsive lumbar system, and 3D armrests. With a W-shaped seat and reclining backrest, it supports productive and comfortable sitting for extended periods. Breathable Mesh Backrest: Flexible, non-pattern mesh fabric helps keep your back cool and comfortable. Fully Adjustable Lumbar Support: Lumbar cushion can be moved up, down, forward, and back for customized back support. Weight-Distributing Seat: W-shaped seat cushion helps evenly distribute weight to reduce pressure on hips and thighs. 3D Adjustable Armrests: Armrests adjust in height and direction with a bounce-back mechanism, adaptable for different user sizes. Headrest & Recline: Height-adjustable headrest cradles the neck, and the backrest reclines from 90° to 120° for flexible sitting positions. Wide Seat Height Range: Seat height adjusts from 19.29″ to 23.23″ to match various desks and body types. Product size Assembled length (inches): 26.38 Assembled Width (inches): 23.23 Assembled height (inches): 47.24 Product Weight (lbs): 36.52