The DSB Dressage Sport Boot is designed to provide excellent protection as well as comfort for the horse. Product Details: Rugged vinyl exterior with a Coverlight strike area. Coverlight is tear, puncture and abrasion resistant and has excellent overall durability. It is also waterproof and highly resistant to fungicidal growth making this an exceptional choice to withstand the rigors of the equestrian environment. Easy strap application system Strong wide velcro straps Machine washable. Available in Black Patent and sizes Small, Medium, Large, and X-Large. 15H to 16H: Small/ Front - Medium/ Hind 16H - 17H: Medium/ Front - Large/ Hind 17H and up: Large/ Front - XLarge / Hind