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The Ionosphere 5.5 is a lightweight, highly insulated insulating mat that is perfect for alpine use in a wide variety of conditions. Reliable thermal performance and low weight are key to efficient transport and restful sleep.
The design features larger outer air chambers than the central ones, helping to keep you centered on the mat and preventing awkward 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 the air.