Available options:
US8.5 / 42,
US13 / 48,
US12.5 / 47 1/3,
US12 / 46 2/3,
US11.5 / 46,
US11 / 45 1/3,
US10.5 / 44 2/3,
US10 / 44,
US9.5 / 43 1/3,
US9 / 42 2/3,
US8 / 41 1/3,
US7.5 / 40 2/3,
US7 / 40,
US6.5 / 39 1/3,
US6 / 38 2/3,
US4.5 / 362/3,
US4/36