Packing to fist size and inflating with just a couple of breaths, the Exped Air Pillow removes all excuses for leaving a pillow at home. And at just 3 ounces it won't weigh you down. Various head positions are easily accommodated by way of indentations and a sloping design. Two low profile FlatValves, one for inflation and another for deflation, make for quick deployment and packing. Soft tricot polyester fabric is comfortable next to the skin. Soft tricot polyester fabric. Two low profile FlatValves, one for inflation, the other for deflation. Various head positions possible with indentations and sloping design. Size: Medium 15 x 10.6 x 4.3 in., Large 17.7 x 11.4 x 5.1 in. Weight: Medium 3 oz., Large 3.5 oz. Packed Size: 4.7 x 2.1 in.