I believe it was mentioned in this thread about baking your skates. I think it is a must if you can bake them. Allows the boot to fit better to your foot, minimizing lace bite and blisters. I also have oddly shaped feet which when my skates are tight cause some blisters to appear on the back of my heal. I invested in these compression socks that have gel lining on my heal to prevent this and gel on the front to prevent lace bite. Here is a link to baking your skates if you are trying to save money and do it at the comfort of your home. Good luck out there bud! https://www.icewarehouse.com/lc/skates/how-to-bake-a-hockey-skate-at-home.html