Available options:
US6/38.5, US6.5/39, US7/40, US7.5/40.5, US8/41, US8.5/42, US9/42.5, US9.5/43, US10/44, US10.5/44.5, US11/45, US11.5/45.5, US12/46, US12.5/47, US13/47.5
US6/38.5, US6.5/39, US7/40, US7.5/40.5, US8/41, US8.5/42, US9/42.5, US9.5/43, US10/44, US10.5/44.5, US11/45, US11.5/45.5, US12/46, US12.5/47, US13/47.5