This mid back ergonomic mesh office chair from Offices To Go features a supportive and breathable screen mesh backrest for maximum airflow. Other features of this chair include a mock leather outer trim on backrest, built in lumbar support curve, thick foam padded seat cushion upholstered in durable Luxhide bonded leather, height adjustable T-shape arms with urethane pads, pneumatic seat height adjustment, 360 degree swivel, adjustable tilt tension with tilt lock and a scuff resistant arched molded base with twin wheel carpet casters. This chair meets or exceeds ANSI/BIFMA standards. Dimensions: Seat Size: 21"W x 18" - 19.5"D. Back Size: 18"W x 19.5"H. Seat Height Adjustment: 17" - 21"H. Overall: 38"H x 24.5"W x 25"D. Five year limited warranty from Offices to Go. This chair normally ships within 1-2 business days.