The Ether Light XT Sleeping Mat from Sea to Summit features lightweight Exkin Platinum 30D / 40D nylon fabric that is tough and durable as well as being “quiet” which means you don’t get the annoying rustle that you get with some other fabrics. The extra height you get with this Sea to Summit sleeping mat makes it perfect for those who sleep on their side as the mat lets hips sink deeper into it without touching the ground. The Ether Light XT also features larger air pockets that are created by using many looped TPU baffles which connect the top and bottom fabric layers with Sea to Summit Air Sprung Cell™ dot weld pattern. The looped baffles allow the top and bottom layers to be positioned further apart creating larger pockets of air when inflated that require less fabric overall. Sea to Summit Ether Light XT (regular) Features: Exkin Platinum 30 / 40D Nylon Lightweight Quiet Fabric Exkin Platinum Thermal Technology Extra Thick (XT) Loop Baffle Air Sprung Cells™ Field Repairable with the Included Self-Adhesive Patches Ultra-Fresh Anti-Microbial Treatment Air Sprung Cells™ Multi-Functional, High Flow-Rate Valve Pillowlock™ Attaches Your Aeros™ Pillow to Your Mat Dimensions168 x 55 cm Rolled Dimensions O9cm x 19cm 10cm Thick R Value 0.8 Weight Approx 350g