These gorgeous ribbon collars are made from high-tensile strength nylon webbing with sewn on polyester/nylon ribbons. Stain and fray resistant; designed to last a lifetime. All collar and lead hardware is cast, not welded brass for extra strength and buckles are Coast Guard approved for high weight hold. Machine wash cold, air dry. SIZING: XS (6-12Ó); Narrow 5/8Ó;S (9-15Ó); Wide 1Ó;; M (12-18Ó); Wide 1Ó; L (15-21Ó); Wide 1Ó; XL (18-24Ó); Wide 1Ó, XXL (21-27Ó); Wide 1Ó