Full rectangular version of ThermaRests most advanced all-season ultralight air pad. The NeoAir XLite NXT MAX the finest full-rectangular ultralight air sleeping pad for year-round backcountry adventures.ThermaRest has redefined its cutting-edge construction technique to bring us the Triangular Core Matrix. Integrated with warmth radiating ThermaCapture technology this reduces the noise by 83 from the previous model. At 3 inches thick, with a horizontal baffled structure and the added sleep surface of a rectangular shape, the XLite NXT MAX delivers maximum comfort and support at a minimal weight and packed size. Weighing just 510 g 1 lb 2 oz and providing a 4-season ready 4.5 R-value, the XLite NXT MAX the most versatile full-rectangular ultralight sleeping pad on the market, and comes ready to craft better nights under the stars wherever you end up.