This sleeping bag is made of polyester and filled to keep the inside of the sleeping bag warm at all times. The inner fabric is filled with double microfiber, which is very soft. Comfortable, durable and skin-friendly - polyester lining is skin-friendly and comfortable. High-quality polyester makes it durable. No matter how hard and rough the ground is, you will feel comfortable. They are very spacious for any adult or child. It is easy to get in and out and turn over to find a comfortable sleeping position. It is suitable for all seasons - stay warm and safe even in temperatures close to freezing. The waterproof double-layer technology keeps you warm in humid environments and prevents moisture. The outer fabric is made of waterproof material, easy to clean and machine washable Multifunctional in different occasions: easy to carry and easy to store. It is suitable for all outdoor activities such as camping, hiking, backpacking, cycling and even survival. It can keep you warm even in extreme conditions. These bags are not only suitable for cold environments, but even for warm weather. Our sleeping bag is designed for those who want a portable and comfortable sleeping bag for outdoor camping activities, you will be able to enjoy the outdoor activities more easily with them. Each sleeping bag is equipped with a compression bag with a shoulder strap, which makes it very convenient to store and carry.