I believe that an adult with a small foot could possibly wear them. They are low cut socks. But they could maybe fit around a 10 year old's foot and older. They go on my foot but they were not really comfortable, for one because I have a wide foot, and for two I wear a size ten in a shoe. My mom gave me a three-pack, I wore one pair and put the other two on listia this being one pair and another has the red M&M on them.