The inflatable lightweight mattress Hannah DOPPY 7.0 features a design with two separate chambers, providing excellent thermal insulation for enhanced comfort during outdoor adventures.. The outer layer of highly durable nylon material with TPU (thermopolyurethane) treatment resists mechanical wear and rough handling exceptionally well, ensuring long-lasting durability and reliability. Two double-layer valves with a check valve maintain the desired level of inflation. The bottom of the mat is equipped with a non-slip print, so it does not slip on the floor of the tent. In case of damage to the mattress, a repair kit is included. However, if you do not have a repair kit at hand, the mattress be used with one inflated one chamber. It also includes a waterproof roll up cover, which also helps to inflate the mattress. The mattress is designed for more demanding climatic conditions from autumn to spring. The overall low weight (870 g) and the high durability and quality of the mat's workmanship makes it an ideal choice for winter alpine activities. The mattress is slightly extended compared to the size of other mats.