High-density memory cell foam was originally developed by NASA to relieve G-force strain during lift off. Temperature- and pressure-sensitive it molds to the body's contour offering optimal comfort. Dissipates pressure while conforming to body contours. Leather-like bottom cover reduces movement on chair. Back Support Type: Chair. Material: High-Density Temperature-Sensitive Memory Cell Foam. Color: Black. Cover Material: Fabric Leather-Like. Washable: Yes. Dimensions: 13-1/2" W x 2" D x 14-1/2".