Lightweight and compact closed-cell foam camping mattress is a durable, dependable, and economical option for sleeping on the ground Trusted by mountaineers and backpackers for generations, the classic pad features folding accordion-style construction that is compact and easily packable Reflective 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 ground Molded foam mattress measures 72 x 20 inches (20 x 5 x 5.5 inches folded) Specification: Material: Polyethylene (XPE) The thickness is about 2CM (including the raised part) Weight: 350 grams Expanded size: 183*56*2CM (length*width*height) Storage size: 57*15.5*13CM (length, width and height) Function: waterproof, dustproof, no pollution, no odor, light and easy to carry Occasion: Mountain plain, snow, snow-capped mountains, grass, riverside, fields, indoors, etc.