Open Toed-Tality.

SMALL
US MEN: 6 - 7.5
US WOMEN: 6 - 7
EU: 37 - 38.5
UK: 4 - 6

MEDIUM
US MEN: 8 - 10
US WOMEN: 7.5 - 9.5
EU: 39 - 41
UK: 6.5 - 8

LARGE
US MEN: 10.5 - 11
US WOMEN: 10 - 11.5
EU: 42 - 45
UK: 8.5 - 10.5