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The Ionosphere 5.5 is a lightweight mat with excellent insulation, perfect for alpine activities in a wide variety of conditions. Its reliable thermal performance and low weight are key to efficient transport and a restful sleep in the mountains.
The design incorporates larger outer air chambers than the central ones, which helps keep you centered on the mat and prevents uncomfortable slipping during the night. To facilitate inflation, an inflation bag is included. In addition, it has a two-way valve that simplifies both filling and emptying air.