Prevent Running Shoe Blisters With a "Lace Lock" So that's what that extra hole is for! I'll be doing this with all my shoes from now on. #link 2015.02.20 @ 09:25 // Aux // You were reading Prevent Running Shoe Blisters With a “Lace Lock”, a link posted with comment by MacDara Conroy. It is filed under Aux and was published in February 2015. If you liked what you read here, you can follow this site on Twitter @MacDaraBlogs or via reader feed, and find many more entries in the Archive. You can also buy me a Ko-fi.