• nylon
• for adults:long enough for adults to keep warm, can can be freely adjusted,camping
• Outdoor :comfortable, anti-splashing water, durable and lightweight,camping
• Winter :foldable and for convenient storage with drawstring bag container supplies,camping
• Camping :no odor for nice sleeping experience, for cold weather
• for cold weather:great for survival, backpacking, hiking, camping, trekking and any other exploration,camping