The Allround mats are reliable and robust. The mat uses high density foam, which makes for excellent insulation. It is also given an antibacterial treatment that prevents odors and fungi. The foam layer is encased in highly durable polyester, with a soft finish on the upper surface. The mat comes with two valves. All you need to do is open them and the mat will self inflate. Once that is done, you close the valves and get ready for a good night?s sleep.