For people with sensitive skin, the ventilated Stimulite Contoured XS cushion, features a soft top layer of specially engineered Stimulite honeycomb fused to two bottom layers.?? Total Pressure Management®? Designed for People with Sensitive Skin? 3-1/2" thick 3-1/4 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