Best Warmth-to-Weight Ratio Ever: Triangular Core Matrix™ construction and ThermaCapture™ technology deliver a cold-conquering 7.3 R-Value while cutting over 57 grams in weight from the previous model.
Premium Comfort: A 7.6 cm thick profile and horizontal baffled structure delivers premium backcountry comfort while keeping the weight to a minimum.
Ultralight Durability: 70D nylon on the bottom withstands the wear and tear of extended expedition use, while 30D ripstop nylon on top keeps it light and packable.
WingLock™ Valve: Delivers fast one-way inflation and rapid deflation without giving up the ability to easily purge air while you lay on it for comfort micro-adjustments—even with gloves on.
Multiple Sizes: 3 size options allow you to get the XTherm NXT that is perfect for your sleep system.