Upgraded with a softer fabric for greater durability and a better feel against the skin, the Therm a Rest NeoAir Xlite Sleeping Pad delivers incredible warmth and comfort in an ultralightweight package that packs up smaller than a 1 L water bottle. Upgraded with a softer fabric for increased durability and better next to skin comfort. Unmatchable warmth to weight ratio. Reflective Thermacapture technology traps radiant heat, and Triangular Core Matrix construction minimizes heat loss without the bulk and weight of additional insulation. 2.5 in. baffled construction for stability, support, and comfort. Packs down to the size of a 1 L water bottle. R value: 3.2.