Size B: Women's 7.5-8.5 or Men's 5-6 Size C: Women's 9-10 or Men's 6.5-7.5 Size D: Women's 10.5-11.5 or Men's 8-9 Size E: Women's 12 or Men's 9.5-10.5Size F: Men's 11-12 Size G: Men's 12.5-13.5*U.S. Shoe Size Equivalent