Inflatable Seat Cushion great for camping,traveling,Picnicking etc, inside foam,outside fabric coated pvc,easy carry, Inflatable Seat Cushion1.Materials:Heavy Fabric( ... With Cap,inside 21D soft foam or memory foam2.Air cushion great for traving,camping,stadium seating,boating,Picnicking or ... opening the valve.5.self air cushion Has an internal self inflating foam and an air valve through which the pad ...