The backrest has a position adjustment to meet the needs of people of different heights.The generously padded seat with high-density foam provides luxurious seating, relieve thigh pressure and pain. The full chair is made of high quality mesh, which is soft, breathable and durable. It includes an adjustable headrest, customizable height adjustment, and ergonomically positioned armrests. Height adjustable headrest provides additional support to your neck to help relieve tension in your shoulders while you work Fabric upholstery with a breathable mesh back Pneumatic gas-lift with lockout feature Tension/tilt controls for customized comfort Dual caster wheels for easy mobility around the room Office chair passed SGS certification