Prevent running shoe blisters with a Heel Lock or Lace Lock
If you've ever wondered what those extra lace holes at the top of your running shoes are for, this video tip explains it, and it can help to prevent getting blisters on your heels.
You can prevent these blisters with a "heel lock" or "lace lock" that creates extra friction between the laces at your ankle. This keeps the ankle and heel area nice and tight, without having to tighten your whole shoe. It also helps to prevent black toenails by keeping your heel and your toes from smashing into the front of your shoe.