Khóa thắt chặt dây giày không cần buộc

I have seen some bungie cord lock designs, but they just didn't work for shoes, where you cannot get the cord out of the shoes without cutting them.

I have a narrow foot, so slip-on shoes (like Sketchers) may work fine in the store but after I get a few miles on them, they stretch out and get sloppy.

This is my attempt to allow for the adjustment of the bungie cord with what is hopefully a stylish and non-disruptive approach.

You slip a loop of the cord through the center of the main piece and then ensure that the cord fits into the slots on either side (see the underside picture), then push the lock into place. It should hold the cord and tighten up the shoe's fit.

You should be able to tuck the cord into the laces.

This is for a 4mm bungie cord.

There are three parts:

1. the main portion where the cord slides in

2. the lock that pushes the cord against the main mechanism

3. the overlock, which keeps the lock in place