[M4/W6] The sole of the foot is about 22-22.5. It is usually worn 36-36. [M5/W7] The foot is about 23-23.5, usually wear 37-37 [M6/W8] The foot is about 24-24.4. Usually wear No. 38-38. [M7/W9] The sole of the foot is about 24.5-25, and the 39-40 is usually worn. [M8/W10] The sole of the foot is about 25.5-26. Usually wear the number 41-41. [M9/W11] The foot is about 26.5-27. Usually wear 42-42. [M10/W12] The sole of the foot is about 27-27.5. It usually wears No. 43-44. [M11/W13] The sole of the foot is about 28-28.5. It usually wears No. 45-46. [M12/W14] The sole of the foot is about 29-29.5. It usually wears No. 47-48.