This is a classic supporter that has been used most for many years. Includes thick sponge to guard shin and back The finger tips make it easy to move around and practice kicking. Size: XXS (Calf circumference 9.4 - 11.8 inches (24 - 30 cm), shin pad 8.3 inches (21 cm), instep pad 3.3 inches (8.5 cm), J (XS) (Calf circumference 10.2 - 13.8 inches (26 - 33 cm), shin pad 11.4 inches (2 cm), instep pad 13 cm). 2.4 inches (6 cm)/XL (Calf circumference: 13.0 - 15.7 inches (33 - 40 cm), shin pad: 11.4 inches (29 cm), instep pad: 6.