With the best warmth-to-weight ratio of any sleeping pad ever created, the XTherm NXT is the top choice for alpinists, backpackers and ultralight travelers chasing cold-weather pursuits. • Warmest Air Pad in its Class: Triangular Core Matrix™ construction and ThermaCapture™ technology deliver a 73 R-value, while minimizing weight and bulk • Ultralight: 155 oz (440 g) means warmth without the weight typically needed to stay warm in frigid conditions • Premium Comfort: At 3 inches (76 cm) thick the XTherm NXT delivers exceptional support and comfort • Ultra-Packable: Packed size rivals that of a conventional 1-liter bottle • Durable: 70D nylon fabric bottom resists punctures during extensive use • Easy to Inflate & Deflate: WingLock™ valve is easy to use in freezing conditions, features one-way inflation, and maximizes airflow to make inflating and deflating a breeze • MAX Coverage: Rectangular shape with extra width provides added coverage and enhanced comfort at camp (XTherm NXT MAX only) • Pump sack, stuff sack and repair kit included