This sleeping bag is made of 100% polyester with double microfiber filling to keep you warm. The skin-friendly lining provides comfort on any ground surface, with spacious design for easy movement. Suitable for all seasons, it features waterproof double-layer technology to maintain warmth in humid conditions. The outer fabric is waterproof, easy to clean and machine washable. Convenient to carry and store, ideal for camping, hiking, backpacking, biking and outdoor activities. Each bag comes with a shoulder strap for easy transport. Weight: 2.57 pounds. Dimensions: