This is a Pearl Izumi Windbreak Waist Warmer (belly band). It's windproof and easy to put on and take off. It fits in a cycling jersey pocket. It's easy to adjust your body temperature, so it's a great companion for winter rides! You can wear it under a jacket or jersey to cover your abdomen from cold wind. There's a pocket on the inside of the front to hold a disposable heat pack. The back has Velcro, so you can quickly take it off if you get too warm. Fits waists: One size, approximately 67-90cm. Used about 5 times after being purchased new. Washed after each use. This is an item that will be useful in the coming harsh winter. I also have other winter items for sale, so if you'd like to purchase them together, I'll offer a discount, so please comment.