Machine washable cover - Made of non-skid vinyl fabric - Great for use as a travel cushion or stadium seat cushion - Orthopedic design sets hips at comfortable seating angle - Relieves lower back and tailbone pain - Ideal for extended seating periods - Durable and resilient polyfoam construction - Slopes from 1.5in at the front to 3in at the back - Foam meets California #117 flame retardant requirements - Ideal for the home car or office