Thick, molded contoured foam cushionStandard Features Include: Back Angle Adjustment: Helps reduce disc pressure and relaxes back muscles. Waterfall Seat Edge: Reduces pressure at back of knee, enhancing blood flow. Contoured Cushion: Supports body allowing you to sit longer without discomfort. Arm Width Adjustment: Allows outward movement of armrests ensuring proper forearm support. Arm Height Adjustment: Reduces muscular effort in neck and shoulders. Tilt Tension Control: Allows you to rock comfortably. Reduces muscle fatigue. Tilt Lock: Lock tilt movements in various positions to accommodate posture. Seat Height Adjustment: Reduces pressure under thighs. Feet stay flat, adding support to lower back. Back Height Adjustment: Supports lumbar. Forward Seat Tilt: Helps reduce disc pressure during forward leaning tasks. Center Tilt: Allows you to recline seat back to comfortable angle, enhancing blood flow.Choose from 5 fabric colors: -01 black, -53 burgundy, -55 navy, -104 taupe, -120 charcoal.To view color choices, click on the View Swatches button located above.250-lbs. weight capacity.Limited lifetime warranty.Dimensions: Overall Chair Dimensions: 37 to 40H x 21W x 19-1/2"D Seat: 3H x 20W x 19"D Back: 20H x 19W x 3"D Seat Adjusts: 16 to 20"H