With cutting edge Triangular Core Matrix™ construction and ThermaCapture™ technology, the XTherm NXT delivers a 7.3 R-value while weighing just 15.5 oz (439 g) in the Regular size.

• Best Warmth-to-Weight Ratio Ever: Refined Triangular Core Matrix™ construction and ThermaCapture™ technology deliver a cold-conquering 7.3 R-Value while cutting over 2 oz (57 g) in weight from the previous model.
• Premium Comfort: A 3-inch (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.

Regular

• R-Value: 7.3
  
• Weight: 1 lb.
• Width: 20"
• Length: 72"
• Height: 3"
• Packed dimension: 9" x 4.5"

Large

• R-Value: 7.3
• Weight: 1 lbs. 4 oz.
• Width: 25"
• Length: 77"
• Height: 3"
• Packed dimension: 11" x 5"