NeoAir Xtherm NXT Regular is a self-inflating mattress that thanks to its state-of-the-art Triangular Core Matrix™ construction and ThermaCapture™ technology, the XTherm NXT offers an R-value of 7.3 while weighing only 440 g in Regular size. In other words, the best warmth-to-weight ratio of any mattress ever created. It is warmer and thicker than its predecessor, which is why the XTherm NXT consolidates its reputation as a mattress for mountaineers, climbers and expeditions in extreme cold conditions. With its 3-inch thickness and horizontal baffles, all-night comfort and support are at your fingertips, while the 70D nylon on the bottom ensures the XTherm NXT's durability for extended use on expeditions. The WingLock™ valve allows for quick inflation and deflation, but is also intuitive and easy to use when the weather is icy and the gloves won't come off. If the demand is for reliable warmth during the night, regardless of the mercury level, and if space in the backpack is limited, there is no better mattress than the XTherm NXT. Size Regular Regular Wide Large Length 183 cm 183 cm 196 cm Width 51 cm 64 cm 64 cm Height 7.6 cm 7.6 cm 7.6 cm Thickness 7.6 cm 7.6 cm 7.6 cm Weight 440 g 540 g 570 g NeoAir Xtherm NXT self-inflating sleeping pad