"Rest easy, knowing you'll stay warm with cushioned comfort all night long when you sleep on the Klymit Static V2 Insulated Sleeping Pad. This backpacking sleeping pad has an ASTM R-value of 4.2, delivering 4-season warmth thanks to its reflective film layers and 120-gram synthetic insulation. Its V-shaped design enhances support for side, stomach, and back sleepers, while integrated side rails make sure you stay centered on the air mat all night. Deep welds offer expansion zones so your sleeping bag won't get compacted, allowing it to maintain its peak thermal performance. This Klymit sleeping pad is made from 75-denier polyester. Klymit flip valve for easy inflation and deflation. Stuff sack provides compact storage.Manufacturer model #: 06IVBL01A. 4-season pad with an R-value of 4.2 Reflective film and 120-gram synthetic insulation V-shaped design provides support for all sleepers Built-in side rails center you on the pad Deep welds allow maximum loft 75-denier polyester Klymit flip valve Stuff sackSpecs: Inflated: 72""L x 23""W x 2.5""H Packed: 4.75""dia. x 7.5""L Weight: 1.5 lbs."