LeadYourLife 2014 New Designed Coccyx Orthopedic Comfort Soft Memory Foam Muti-function Seat Cushion (Yellow) Seat cushion reduces pressure on the coccyx and hip bones while sitting Superior comfort for chairs, car seats, planes, and wheelchairs Two-layer design: it is made of a specifically engineered gel layer molded on top of our highest quality Soft Memory foam Removable velour cover is machine washable and allows for easy cleaning Helps with treatment of sciatica, pressure ulcers, injured tailbone, and more