Nylon; Color: Black; 1680 Denier Outer Shell; Shock Absorbing Interior With Soft Lining; No-Turn Bump In The Back; Double Locking “Quick Grip” Closure; Protects Lower Leg; Sold As A Pair; Small: 4″H x 4.5″W, 8″ Pastern Circumference; Medium: 4.5″H x 4.75″W, 8.5″ Pastern Circumference; Large: 4.5″H x 5″W, 9″ Pastern Circumference; Style #64-18100-2