Therm-a-Rest Travel Cushion Back and leg support to relieve ischial spine pressure Self-inflation provides custom, one-handed adjustment, and the cushion rolls easily into a carry-on for life on the go Lightweight and compact Length: 16.5 inches Width: 10.5 inches Thickness: 2 inches Weight: 4 oz . Made in the USA NOTE : In order to inflate it to its maximum allowable pressure it requires a few breaths