Lightweight and compact closed-cell foam camping mattress is a durable, dependable, and economical option for sleeping on the groundTrusted by mountaineers and backpackers for generations, the classic pad features folding accordion-style construction that is compact and easily packableReflective ThermaCapture coating and heat-trapping dimples capture radiant heat, increasing overall warmth by 20 percent for an extra cozy nights sleep (R-Value 2.0)Sleeping pad foam is softer on the top for comfort, and denser on the bottom for extra insulation, durability, and protection from the groundMolded foam mattress measures 51 x 20 inches (20 x 4 x 5.5 inches, folded) and weighs 10 ounces; manufacturers limited lifetime warranty; made in the USA