Approximate Size Chart:  Euro 21=US 5; Euro 22=US 6; Euro 23= US 6.5; Euro 24=US 7.5; Euro 25= US 8; Euro 26=US 9; Euro 27= US 10; Euro 28=US 11; Euro 29=US 12; Euro 30=US 12.5; Euro 31= US 13; Euro 32=US 1.

These run a little small so we suggest trying them on before purchase.