Description:1. Ultra-thick 26μm polyethylene material.2. Durable, tear resistant and weather resistant.3. Reflective internal reflections up to 90% of human body heat.4. The seam seals the edges to prevent wind, rain and snow.5. The reusable warm bag is folded into a waterproof bag. Package included:1* sleeping bag Notes:1. 1 inch = 2.54 cm2. Please measure it yourself to choose the right size.3. Due to the difference between the different displays, the picture may not reflect the actual color of the item. Thank you!