Designed with a mild contour and low profile for active people with sensitive skin, the ventilated Stimulite Slimline XS cushion features a soft top layer of specially engineered honeycomb fused to a bottom layer.?? Total Pressure Management®? Designed for People with Sensitive Skin 2-3/4" thick 3 lbs. machine washable; dryer safe standard sizes: 14" x 16", 16" x 16", 16" x 18", 18" x 16", 18" x 18", 18" x 20", 20" x 16", 20" x 18", 20" x 20" non-standard sizes include: 14" to 18", 19" to 20"; additional sizes and special cuts available. flat or sling bottom available with polyester or sheepskin cover