Trekking Mats use special lightweight foam with special cavities. This is essentially for reducing weight and packing dimensions. High insulation and sleeping comfort are maintained.

1 brass valve
Material: 10% polyester
Operating instructions: Roll out the self inflating camping mat, open the valves and allow air to flow in. After a short time (when air is no longer flowing in) bring the mat to the desired degree of hardness by additional, short inflation.