Our Ascent 38 womensFIT is a three season sleeping mat designed especially for women. Our womensFIT comfort mapping construction strategically places more insulating foam in the core areas women need it most for warmth, support and comfort, with a more petite sizing that aligns with our womensFIT sleeping bags. Sleep comfortably – we have you covered. Material Upper: 213T Polyester Diamond Ripstop Lower: 150D Polyester Oxford Stuff Sack: 210D Nylon Ripstop Dimensions Mat (Fully Inflated - measured at widest points) 184cm L x 54cm W Width at lower edge: 40cm Stuff Sack 56cm L x 14cm D Weight 900g Our Ascent 38 womensFIT is a three season sleeping mat designed especially for women. Our womensFIT comfort mapping construction strategically places more insulating foam in the core areas women need it most for warmth, support and comfort, with a more petite sizing that aligns with our womensFIT sleeping bags. Sleep comfortably – we have you covered. Material Upper: 213T Polyester Diamond Ripstop Lower: 150D Polyester Oxford Stuff Sack: 210D Nylon Ripstop Dimensions Mat (Fully Inflated - measured at widest points) 184cm L x 54cm W Width at lower edge: 40cm Stuff Sack 56cm L x 14cm D Weight 900g Stuff sack included 184cm x 54cm womensFIT comfort mapping Three-season use Anti-slip silicone print Integrated repair kit 3.6 - 2.4 R-value rating Temperature tested in accordance with ASTM D 1518