Using these under sneakers, work shoes, and hiking scramblers. The fit is excellent - form-fitting with no excess material to start blisters. Both my sister and I have these socks, in the same size. We both wear size 9.5-10 women's shoes - but she has average size ankles, while my ankles and calves are extra large. The socks comfortably stretch to accommodate my legs, and do not bind. The neutral set is great with jeans, and the brighter colors are a lot of fun for exercise. We are both very hapSee full review