I had low expectations for these thin no-show socks because I have very long narrow feet and I have never had any success with shoe liners. They are always either too short or too wide. I ordered large, washed them first, and they work! I won't use these for exercise. They are very thin and not soft or cozy. But they are great light weight liners for when you want to wear shoes with no socks showing. The rubbery grip on the backs of the ankles work great for me as I have very thin ankles. I'm pleasantly surprised and so glad I tried them.