I wasn't sure what size to get because I'm normally a 37 in birks and a 7.5 in every other shoe but this says 6-6.5. I'm also in the US so I wasn't sure what sizing it was meant for. I'm glad I didn't go with the 6-6.5 and knew what size birks I actually wore! Definetely know your siz3 before ordering! Oh and they are SO CUTE!!!!! I LOVE THEM!