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. Material(s): High-Density, Temperature-Sensitive Memory Cell Foam; Width: 16 1/4 in; Depth: 2 1/4 in; Height: 16 1/4 in.