Masters OSK-1 Foot Protector Foot protectors for training in all combat sports. Properties: Made of leather, The insert is made of polyurethane foam. Fastened to the leg with a Velcro strap. SIZE CHART by shoe size: (foot length):S 37-39 (27 cm)M 40-42 (28.5 cm)L 43-44 (30 cm)XL 45-46 (32 cm) Material: Leather, polyurethane foam Color: black