If between sizes, consider sizing up by 0.5 size. 8 5 38 9.8 / 25.0. 7.5 4.5 37.5 9.6 / 24.5. 7 4 37 9.4 / 24.0. 6.5 3.5 36.5 9.3 / 23.5. 6 3 36 9.1 / 23.0.