All our collars are handmade in the US of nylon webbing with sewn on nylon/polyester ribbon. They are stain and fray resistant. As there is no standard on collar sizes please refer to this chart for sizing. As all our collars are a 1" width we do not make small collars, M 12"-16", L 16"-21", XL 21"-26". The inches listed are the size of the dogs neck. These collars are custom made when ordered so if you need a different size please send a message and we'll be happy to make it for you. For instance if your dogs neck is 16" we will be happy to make a 14"-18" collar for you. Buyers from outside the US are responsible for any customs or duty fees.