Thanks to the innovative Triangular Core Matrix™ construction and ThermaCapture™ technology, the XTherm NXT achieves an R-value of 7.3 while weighing only 439 g (regular size). In other words, it offers the best warmth-to-weight ratio ever achieved for a sleeping pad. This mat is warmer, lighter, and thicker than its predecessor, making the XTherm NXT the top choice for mountain professionals, climbers, and expeditions in extreme cold. With a thickness of 7.6 cm and horizontal chambers, this mat is particularly comfortable and provides excellent support. The 70D nylon underside ensures that the XTherm NXT withstands extended use. The WingLock™ valve allows for quick inflation and deflation. It is intuitively designed and can be used even with gloves on.