Size guide: Small (1" x 14-17"), Medium (1" x 17-20"), Large (1" x 20-23"), X-Large (1" x 23-26") * Designed and manufactured in the U.S.A. by outdoor enthusiasts using climbers grade materials for optimum function, strength, and durability * Attractive and wide one inch webbing can be seen even on the thickest coats and is trimmed on both sides with bright 3M reflective piping * Entire collar is lined with neoprene to provide extra comfort for your dog * Plastic quick connect buckle is strong, lightweight, and easy to use and collar is totally washable to provide years of use