• US SHOE SIZE ANKLE CIRCUMFERENCE (inches) CALF CIRCUMFERENCE (inches)
    S/M 5.5 - 7.5 8 - 9½ 11½ - 15½
    M/L 8 - 10.5 9½ - 11 12½ - 17
    L/XL 11 - 12.5 11 - 12½ 14½ - 18