I am a 8 sometimes 8 1/2 in Keens. The 8 fit whereas the 8 1/2 my heel went up and down. These are loose around the ankle so sliding your feet in to put them on is easy no pulling. I am on my feet all day. Putting these on at the end of the day makes a huge difference. So much so I am considering getting another pair to cook in. Good grip on the ground and like I said they are loose around the ankle yet my ankles feel secure.