Nylon 【650 Fill Power Down – Warm Without the Bulk】Premium high-loft down traps body heat efficiently, keeping you warm on chilly nights without heavy weight. Perfect balance of warmth and portability for camping and travel. 【Ultralight & Packable for Any Trip】Weighs only 1.25 lbs and packs down compact into the included carry bag. Easy to throw in your backpack or car—ideal for backpacking, road trips, flights, and outdoor adventures. 【Water-Resistant & Windproof Protection】Durable nylon shell repels moisture and blocks cold wind, keeping you dry and comfortable in unpredictable outdoor conditions. 【One Blanket, Endless Uses】Use it as a camping quilt, stadium blanket, beach mat or travel throw. Stay warm at campfires, sports games, picnics, or on the go. 【Built for Outdoors, Backed by 4Monster】Designed for durability with strong stitching and long-lasting materials. Includes 12-month warranty and responsive customer support for worry-free use. (80% down & 20% feather)