ALPS Mountaineering Lightweight Series Self-Inflating Air Pad-Double Attaches and detaches securely by Velcro, allowing you to use pads separately or together Polyester Ripstop top fabric and Polyester Taffeta bottom fabric Jet stream wave foam and double brass valve with included stuff sack and repair kit When you don't need to join them for two people, fold them on top of each other for a maximum 6" of comfort all to yourself Double Size: 47" x 75" x 3", Individual Size: 23.5 x 75" x 3", Weight: 9 lbs. 7 oz.