The Ultralight Insulated is an inflatable sleeping pad by Sea to Summit designed for sleeping in the best conditions away from home. With a single-layer construction, the Ultralight Insulated is by definition very lightweight and compressible. However, the goal of this sleeping pad is not to be the lightest or most compact, but simply the most comfortable. With its R-value of 3.1 and its thickness of 5 cm, it makes a perfect 3-season sleeping pad for those who want to travel the trails in comfort. And since comfort is not only about "feeling" when you lie down on it, Sea to Summit has integrated various technologies to make your life easier. Air Sprung Cells™: conform to the shape of your body, offering more even pressure distribution across the pad for a more comfortable night's sleep The high-flow multi-function valve allows for rapid inflation, quick deflation, and easy fine-tuning for personalized comfort Ultra-Fresh® antimicrobial treatment in the TPU formula to prevent internal mold growth Includes an integrated Airstream™ pump in the stuff sack for quick and easy inflation Includes a repair kit for easy on-the-field puncture repair Includes a compression sack The included Pillow Lock™ system secures Sea to Summit pillows to the pad R-Value (ASTM F3340-18): 3.1 Ultralight Insulated - XS Length: 128 cm Width: 55 cm Thickness: 5 cm Packed dimensions: ø9 x 23 cm Weight: 349 g Ultralight Insulated - Small Length: 168 cm Width: 55 cm Thickness: 5 cm Packed dimensions: ø9.5 x 23 cm Weight: 430 g Ultralight Insulated - Regular Length: 183 cm Width: 55 cm Thickness: 5 cm Packed dimensions: ø10 x 23 cm Weight: 480 g Ultralight Insulated - Large Length: 198 cm Width: 64 cm Thickness: 5 cm Packed dimensions: ø10.5 x 26 cm Weight: 595 g Sea To Summit Ultralight Insulated - Sleeping pad