... air cushion great for camping,traveling,Picnicking etc, inside foam,outside fabric coated pvc,easy carry,rolled up seat ... A Built-in plastic Valve With Cap,inside 21D soft foam or memory foam2.Air cushion great for traving, ... 3.It has an easy carry and deflates easily,foam mat can be rolled up?and put in ... 5.self air cushion Has an internal self inflating foam and an air valve through which the pad ...