For Adults Using It Indoors, Outdoors, Or While Backpacking,, And Washable. 20D nylon Imported 3M Thinsulate Insulation Filling, WARM YET LIGHTWEIGHT, POWERFUL YET THIN. It helps trap body heat, while allowing moisture to escape. It is also Flame Resistant, Featherless, ECO-FRIDENDLY, and Water Resistant. 20D nylon fabric, soft, comfortable, skin-friendly, and windproof. Perfect for various outdoor activities, such as backpacking, camping, travelling, hiking, adventure, mountaineering, etc. It is also a great choice for hotel use. ULTRALIGHT and COMPACT, only 2.4 lbs, packed size 10.6? 7.9?, stuff sack included, easily fit in any backpack. Every ounce matter for backpackers, unlike other heavy bulky ones, this light 3M sleeping bag will provide you a great backpacking trip. USED FOR 3 SEASONS, designed for 32~41?/ 0~5? Unpacked size 82? 32.6?, can fit most people up to 6?10?; Thermal enhancing, Double-layer construction to eliminate cold spots; Cinchable Draft Collar and Smooth-Curved Baffles to prevent heat loss; Sleeve on the top to hold your pillow in place; Two Way Anti-Snag YKK Zippers, easy to climb in and out; Velcro to avoid zipper slippery; Internal pocket to hold your phone and wallet; Anatomically Designed 3D Footbox gives your feet a rest after an epic day on the mountain. MACHINE WASHABLE. Spot-clean as needed with a damp sponge. Machine-wash only when necessary in a large capacity, front-loading washing machine. Select cold water and a delicate cycle with two rinses and an additional spin cycle. Lifetime warranty: We stand behind our products and offer a limited lifetime warranty against manufacturer defects.