"It delivers the comfort of closed-cell foam, ample thickness, and the Nemo Switchback Ultralight Sleeping Pad features hexagonal nodes molded with dual-density Axiotomic foam to create Hypnoelastic zones that conform to your body in a perfect balance of comfort and support. This hexagonal pattern creates a nesting pattern that allows for more space for taller, wider nodes; this provide extra plushness and more space for uncompressed sleeping bag insulation for up to 15% extra sleeping warmth. This pattern offers more precise tooling for tighter nesting, which creates a smaller packed size. Plus, this Axiotomic foam offers two layers for a perfect blend of compression, comfort, and abrasion resistance. Metallized thermal reflective film reflects heat back to your body and is protected by a durable film. The Nemo Switchback Ultralight camping pad is easy to use, sets up and folds up quickly, and it's great for mountaineering, hiking, or camping. Premium dual-density Axiotomic foam adds comfortable support Highly-efficient, hexagonal nesting pattern Taller, wider nodes add plushness and extra warmth Precise tooling for a smaller packed size Metallized thermal layer reflects heatSpecs:Regular: 72""L x 20""W Thickness: 0.9"" Weight: 14.5 oz.Short: 51""L x 20""W Thickness: 0.9"" Weight: 10.5 oz."