Arctic Sleep by Pure Rest Cool-Gel Memory Foam Knee Support PillowWedge Leg PillowSide Sleepers Ergonomic Pillow Cool-Gel Memory Foam Knee Support Pillow helps provide the ultimate comfort for sore knees, support for lower legs, and helps offer pelvic and lower back tension relief while you rest. Front: 150gsm Faux Suede Gray: Back: 150gsm Faux Suede Gray; Center/Gusset: Light blue mesh; Fill: 100% Polyurethane Cover: Machine wash cold, tumble dry low. Foam: do not wash foam The pillow made with CertiPUR-US certified foam