This newest addition to our Mini Horse Vests has a Heart Like Shape to it so that it forms around, and fits the Mini Horse in a great way. The vest comes with a middle layer that gives the vest more stability and form. It also has 3 Metal D rings one in the front for tags, or ID, and two towards the rear to clip a potty bag to (potty bag not included). It has a sturdy handle on the top, and a cut to order custom fit Belly Strap. You can add patches, embroidery, and it even has the option to add reflective binding around the whole edge. Sizing is based on the distance from the withers to the point of shoulder, or where the shoulder starts.