Initially they were pretty tight, second time I wore them they seemed to have stretched out, so much so that I am concerned after repeated wearing they would become way to big. Also, after wearing them for over an hour in the house, my feet began to sweat quite a bit. As much as I like them, the style and color and I really like Merrell shoes, I'm afraid I am going to return them because of the sweaty feet and fear of after complete break in I would walk right out of them.