Thank you for viewing. This is a Montbell Down Foot Warmer (size M). It's an ideal item for cold weather protection during camping and tent stays. I used it once during a tent stay, but I'm selling it because I don't have the opportunity to use it anymore. It comes with a stuff sack for compact storage. Please purchase with the understanding that it is a used item. ＜Product Description＞ This down foot warmer uses high-quality down with excellent heat retention and can be stored compactly. The drawcord allows you to adjust the fit around the ankles, making it difficult to slip off during sleep or walking. The lining uses a non-slip brushed mesh fabric. The stretch material at the opening prevents cold air from entering. It is a suitable item for cold weather protection in mountain huts, tents, during rest, and during sleep. Product Number: 1118504 Size: M (24-26cm) Color: Gunmetal Material: Outer fabric: 10-denier Ballistic® Airlight nylon [water repellent finish] Lining: Clima Plus® mesh [polyester] Insulation: 650 fill power down Weight: 142g Storage size: Φ10 x 17cm Features: Comes with a stuff sack