NEMO took the traditional ultralight foam pad and made it plusher, warmer, and more packable. The Switchback weighs less than a pound, yet is durable enough for all your overnight adventures. If you're in search of an ultralight foam pad, we don't think you can find one better than this. Taller nodes create more space for uncompressed sleeping bag insulation, trapping more warmth around your body Premium dual-density Axiotomic foam offers a supple layer for comfort and a resilient layer for support Metalized thermal reflective film reflects heat back to your body and is protected by a durable film Use as a standalone pad for ultralight durability and comfort or pair with another pad for extra insulation and comfort in extreme cold conditions Weight: 14.5 oz.Dimensions: 72x20 in. Thickness. .9 in.