Size Note:
Basic Version:
XS: 3.0 - 3.9 inches (7.6 - 10 cm), S 4.3 - 5.9 inches (11 - 15 cm), M 6.5 - 7.9 inches (16.5 - 20 cm), L 8.5 - 9.4 inches (21.5 - 24 cm), XL 9 inches (2
Upgraded Version:
XS(5-9cm), S(10-14cm), M(15-20cm), L(21.5-24cm), XL(25-29cm)
Note: For bunions, instep height and width, please choose a size larger than 0.2 - 0.4 inches (0.5 - 1 cm) based on the basic size.