The Therm-a-Rest NeoAir XLite™ mattress offers superior 3-season warmth and packability with the convenience of new WingLock™ Valve Technology. Using simple physics, the special valve allows you to inflate your insulated mattress twice as fast as traditional valves, with a fraction of the effort. See how fast you’ll feel at home in the backcountry with the comfort, warmth and stability of the mattress’s patent-pending Triangular Core Matrix™ construction and reflective ThermaCapture™ Barrier technology. And when it’s time to hit the trail, the patent-pending, auto-reversing valve deflates the ultralight mattress almost instantly. Stuff sack and repair kit included. Therm-A-Rest Neoair Xlite (Regular) Features: 30D HT Nylon Fabric Soft-Touch Top Fabric Reflective ThermaCapture™ Technology Triangular Core Matrix™ Construction New WingLock™ Valve Technology Thickness 6.4cm, Dimensions 183cm x 51cm Packed Dimensions 23cm x 10cm Weight Approx 340g R-Value Rating 4.2 Pump Sack, Stuff Sack and Repair Kit Included