Folded mats with a profiled surface have a higher thermal resistance (2.2) for the same material thickness, provide greater comfort and take up less space after packing. The excellent thermal comfort is further enhanced by the fact that there is an Al layer on one side of the mat, which reflects the radiated heat from the sleeping bag back. It is used as an Al layer for a sleeping bag. The material has a closed cell structure and a smooth surface, so it does not absorb water. Sold including packaging. Check out the mat test: Prakticky.sk or Outdoor world