I have the size 42 and I'm normally a 43, with widish mountain shaped, high volume/ high instep feet and while the shoes fit in length, the sole of the foot isn't stable enough to prevent flopping (especially on carpet) and creating a tripping hazard as other reviewers have said. I am on the fence about returning these, as I am otherwise in love with the fit and gold color. Even on me, the front strap is too loose to feel secure.