CAMP SELF INFLATING MAT - LARGE - SEA TO SUMMITCamp SI Mat Built wider than its mummy shaped cousin, our Camp Mat S. I. Rectangular provides great value, durability and comfort. Our use of a 75D Polyester makes for a tougher, more abrasion resistant base, while at 3. 8cm thick, the Camp Mat S. I. Rectangular is comfortable enough to keep anyone from pushing through to the ground. The high 4. 2 R value also means its great to use in all year round. FEATURES Delta Core V Technology Robust and