Made for flat shoes and boots with a heel height of 1 inch or less
SIZE RANGE (US):
B: Jrs 2.5-4 / W 4.5-6
C: W 6.5-8 / M 5.5-7
D: W 8.5-10 / M 7.5-9
E: W 10.5-12 / M 9.5-11
F: W 12+ / M11.5-13