Spindrift Reflective Safety Dog Collar 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