Lupine’s 1†wide collars are suitable for medium and larger dogs. Made from jacquard woven nylon with strong bar-tack stitching, welded D-ring and a custom designed side-release buckle. Matching padded handle leash available. Two adjustable size ranges: 12â€-20†and 16â€-28â€. To determine collar size, measure snugly around the middle of the dog’s neck, then add an extra 5% for a comfortable fit. Lupine products are not recommended for tie-out. Machine wash, warm water, mild soap (no bleach or bleach alternative). Air dry.