The KONG Comfort Weave Padded Ultra Premium dog collar is the perfect choice for comfort and safety for your dog. This collar is fully adjustable, and is lined with neoprene for extra padding and comfort. It offers added safety as well, as its reflective piping makes it more visible at night. Metal D-ring hardware for ID tags and leash clip. Sizing: Size: Medium 14"-20" & 5/8 " Wide. Large 18"-26" & 1" Wide. XL: 22"-28" & 1.5" Wide. Please measure for best results.