Therm-a-Rest Trail Scout Self-Inflating Foam Camping Mat Urethane Three-season self-inflating foam sleeping pad for light backpacking, car camping, and summer camp comfort Solid polyurethane foam core, with durable urethane fabric top and bottom; R-value of 3.4 for year-round insulation Expanding foam core is lightweight and compressible for easy packing; pad self-inflates and can provide firmer support with a few breaths Suited to car camping, light backpacking, summer camp, and extra cot padding, the 1-inch thick mattress is supportive and comfortable Large measures 77 x 25 x 1 inches, packs to 13 x 5.7 inches, and weighs 30 ounces; stuff sack included