Video answer: How to stop shoes from rubbing the back of the heel & ankle!
Top best answers to the question «Why do my shoes keep rubbing»
Excess water in your shoes is one of the biggest causes of rubbing and blister development. This is because wet skin is softer and more vulnerable, so the top layer is more likely to be pulled away from the lower ones. Water will also dampen socks, which can cause more friction and worsen the rubbing.
Video answer: How to stop shoes from rubbing