Sea To Summit Ether Light XT Insulated Mat (Small) The lightest, warmest and comfiest sleeping mat from Sea to Summit. Designed to provide a comfortable nights sleep, the Sea To Summit Ether Light XT Insulated Mat is perfect for camping adventures. Lightweight, quiet and grippy, the Mat has been constructed using a 30/40D Nylon fabric. The fabrication provides ample durability but, if you do get a puncture, the mat is field repairable. Included with the mat are self-adhesive patches that allow you to plug holes. The Ether Light has been constructed using Air Sprung Cells which offer a more comfortable nights sleep. The larger air pockets are created by using many looped TPU baffles which connect the top and bottom fabric layers. These looped baffles are positioned further apart creating larger pockets of air when inflated that require less fabric overall. The larger pockets let you sink into the mat without touching the ground, this ensures complete comfort even for side sleeper