Up Country's ribbon collars and leads are made from high-tensile strength nylon webbing with sewn on polyester/nylon ribbons. The hardware is cast brass for extra strength and buckles are Coast Guard approved for high weight hold. Machine wash cold, air dry. Available in widths- Narrow 5/8" & Wide 1". Collars lengths measure to the following: Narrow: XS 6-12", SM 9-15", MED 12-18" Wide: SM 9-15", MED 12-18", LG 15-21", XLG 18-24", XXL 21-27". Leads available in 5' lengths.