Rab are newcomers to camping mats, but their decades of experience in making sleeping bags suggest they knew what they were getting into.
In this review, we look at the Ionosphere 5.5, which offers fantastic warmth to weight as well as superior comfort to almost any other mat that I have tried. A small pack size for such a warm and large-dimension mat makes it perfect for mountaineering, alpine outings and backpacking in cold conditions.
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