Women's Sizes:

Size A = Women's 5 to 5-1/2

Size B = Women's 6 to 6-1/2

Size C = Women's 7 to 7-1/2

Size D = Women's 8 to 8-1/2

Size E = Women's 9 to 9-1/2

Size F = Women's 10 to 10-1/2

Size G = Women's 11 to 11-1/2

Size H = Women's 12 to 12-1/2

Men's Sizes:
Size C = Men's 6 to 6-1/2

Size D = Men's 7 to 7-1/2

Size E = Men's 8 to 8-1/2

Size F = Men's 9 to 9-1/2

Size G = Men's 10 to 10-1/2

Size H = Men's 11 to 11-1/2

Size I = Men's 12 to 12-1/2