Amay Big Size Chunky Height Man Sneakers Women Sport Shoes Man Running Shoes Men Sports Shoes for Boys Black Blue White Toning D-753the only criterion is barefoot length. if foot is wide, choose bigger size. CHECK SIZES: Size 4. 5 = Barefoot Length 22. 1 22. 5cm =EUR Size 35 Size 5 = Barefoot Length 22. 6 23cm =EUR Size 36 Size 5. 5 = Barefoot Length 23. 1 23. 5cm =EUR Size 37 Size 6 = Barefoot Length 23. 6 24cm =EUR Size 38 Size 6. 5 = Barefoot Length 24. 1 24. 5cm =EUR Size 39 Size 7 = Barefoot Length 24. 6 25cm =EUR Size 40 Size 7. 5 = Barefoot Length 25. 1 25. 5cm =EUR Size 41