Ideal for people who care about going light and fast, but still care about getting a good night’s sleep, the Sea to Summit Ultralight Insulated Sleeping Pad features Thermolite insulation and quiet, nonwoven fabric to reflect heat back toward the user. Quiet, nonwoven Exkin Platinum fabric reflects heat back toward the user. Thermolite insulation prevents convective heat loss between your body and the ground R value of 3.3. Air Sprung Cells conform to your body, delivering more support and comfort than pads using tubes or baffles. Insulation (R) value: 3.3; Number of Air Sprung Cells: 225; Thickness: 2 in. (5 cm). Multifunction valve for fast and easy inflation/deflation and fine-tuning of air pressure. 40D nylon ripstop fabric offers the perfect balance between light weight and durability. TPU lamination delivers a better more consistent bond and virtually eliminates any issues with delaminating. Antimicrobial treatment is added to TPU to prevent any issues caused by warm, moist air trapped inside the mat. Includes a stuff sack and repair kit containing six self-adhesive patches and a spare silicone one-way valve flap.