NeoAir XTherm NXT MAX, Large 8.5in / 217 mm They can be worn over

They can be worn over larger hiking boots

second only to keeping your drinks icy cold (or perfectly hot)

Made with 1000-fill RDS®-certified down

even with thick gloves

NeoAir XTherm NXT MAX, Large 8.5in / 217 mm They can be worn overWith cutting edge Triangular Core Matrix construction and ThermaCapture technology, the full rectangular shaped XTherm NXT MAX delivers a 7. 3 R value while weighing just 680 g (24 oz) in the Large size. Put another way, the best warmth to weight ratio of any rectangular sleeping pad ever created. It's warmer and thicker than the previous model, which is why the XTherm NXT MAX cements the legacy of being the go to rectangular sleeping pad for