These were on my husband's wishlist, so I got them for him for father's day. He consistently wears a size 10 in men's, however, when he put these on they were extremely tight and his feet were scrunched up in them. Very uncomfortable and narrow too. He said it felt like one full size too small. His feet are a medium width but he doesn't want the size 11 for fear they will most likely be on the narrow side too. They look and feel like nice shoes but the sizing is off.