Therm-a-Rest Neo Air Xther Max L Sleeping Pad [77 x 25 in, 1lb 8 oz, 4 Season, R-Value 7.3]
- Best Warmth-to-Weight Ratio Ever: Refined  construction and  technology deliver a cold-conquering 7.3 R-Value while a Large size weighs just 24 oz (680 g).
- Premium Comfort:Â A 3-inch (7.6 cm) thick profile, horizontal baffled structure and the added sleep surface of the rectangular shape deliver premium backcountry comfort while keeping the weight to a minimum.
- Ultralight Durability:Â 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.
-  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:Â 2 size options allow you to get the Xtherm NXT MAX that is perfect for your sleep system.