Features: Multi-function valve, to make inflation and deflation of its air mats easier Prevent air loss before you seal the valve Rapid air dump deflate port Fine tune button to adjust for comfort - all in one compact, low profile unit Easy attachment of a pump, for simpler inflation Pillow lock system Delta core technology Specs: Best use : short backpack trips, camping, winter camping Comes with : stuff sack Fabric : 30d polyester knitted upper, 30d polyester base R-valu : 4.1 Thickness: 3" / 8 cm Weight: 2lbs 2oz / 970g Packed size: 6.5 x 11" / 17 x 28 cm