The Grand Trunk A-Pad Travel Cushion allows you to sit comfortably anywhere you travel. This travel cushion makes any uncomfortable seating arrangement better. The cushion also features a self-inflating valve and includes a stuff sack to pack up easier. When fully inflated this product is 12" x 12" and deflated it fits into the 7" x 4.5" stuff sack. Weighs 7 oz. Pillow material is polyester.