Cold-weather warmth for hiking and backpacking - Delivers essential warmth in cold conditions, making overnight hiking and backpacking more comfortable and safer. Compressible design with heat-reflection technology - Features a silver-coated nylon shell and advanced heat-reflection technology to retain body heat while remaining highly packable. - The sleeping bag compresses down for easy storage in a backpack. Weather-ready and durable - Windproof and waterproof durable nylon fabric with a heat-reflective aluminum coating helps protect you from wind and moisture while maintaining warmth. Built for repeated outdoor use - Constructed for durability in rugged outdoor environments and suitable for repeated trips and long-term use. - Compact when packed, designed to fit easily in standard backpack compartments. Materials and performance - Shell: silver-coated nylon with aluminum heat-reflective coating - Lining and structure: durable nylon materials designed for outdoor reliability - Thermal performance: optimized heat reflection to conserve warmth in cold weather Size and compatibility - Packable size optimized for backpack storage; compatible with common backpacking and camping setups. - Designed for portability without sacrificing warmth or protection. Use scenarios - Winter or early-m season hut-to-hut or backcountry backpacking trips where nights are cold. - Campsites with windy or damp conditions where windproof and water-resistant protection improves comfort. - Emergency warmth for a vehicle, shelter, or roadside stop during late-season travel.