The sleeping bag can be unzipped and totally opened for use as a blanket. High-quality fabric and warm hollow cotton filling, use eco-friendly, keep warm efficiently, well-featured with good breathable performance, and light-weight. The hat is thicken filled, can improve 150% comfort; with adjustable strap, preventing your head from wind or cold, to better achieve the warm effect; and also with strap on the side, easy to fix or adjust. It is not only suitable for outdoor camping during winter and cool climate, but also for you to take it to the office.