TwisterCane™ BioFoam Sleeping Pads are engineered for ultralight backcountry summer trips to high alpine winter conditions. The closed-cell foam technology provides a firm, cushioned barrier between you and the ground; smooth on one side with a tire tread pattern on the other. Use alone or layer it with an air pad for added insulation. Made from sugarcane biomass in a process that removes carbon from the atmosphere and sourced using Proforest standards. Features More environmentally conscious material with unique EVA foam that contains more than 60% sustainably grown sugarcane resin. Sugarcane is a renewable raw material that contributes to reduce greenhouse gas emissions by CO2 capture. The sugarcane resin we source is derived from sugarcane grown and harvested following Proforest standards and audited by a third party Use alone, on top, or underneath an insulated air chamber pad for additional warmth and comfort Create a four-season system when paired with an insulated air chamber pad while sleeping on frozen ground or snow A comfortable backcountry mat on uneven ground, adding protection from dirt, wet grass, or snow Provides a firm, insulated barrier with closed-cell foam technology and balance between warmth and comfort with die-cut peaks and heat-trapping valleys More warmth and comfort with two foam layers of texture for option of dimples up or dimples down Light enough to carry anywhere and makes a great bleacher seat for spectator events Rolls tight to save space and weight Durable and long lasting Specs + Sizing Packed Weight  397g Packed Size 18 x 51cm Number of Seasons 3 Construction + Materials Unique EVA foam contains more than 60% sustainably grown sugarcane resin Thickness: 0.5" /13mm Width: 20" / 51cm Length: 72" / 183cm R-Value: 1.7