I have several pairs of socks that incrementally slide down my ankles only to bunch up at base of my heels. I know this to be case as I've often experienced it when one sock is doing it and the other pair is not. Over the weekend, I decided to really take the time to match up my socks. This meant putting together the pairs that like to do the limbo with my ankles. Today, I put on one of these special pairs and sure enough they've slid down to the base of my heels. I did this to myself😜