10'' Gel BambooBreathable mesh chair : Our seat is made of breathable mesh material, which can dissipate heat well to avoid sweating and sticking to clothes and keep the air flowing. 3D Headrest (with hanger): The chair's headrest is adjustable , which helps to release neck pressure and relieve shoulder and neck pain during lunch break and work. The hanger can hang clothes or bags. Adjustable Armrests : Comfortable and wide armrests, with 3 inches of height