For those of you that don't know, Worbla is a thermoplastic that can be molded into any shape. It also adheres to almost everything, so I thought that I could melt some over the hole in my shoe and continue to get some more use out my Vibrams. Let's give it a go, shall we!
roughly the size of the large gap on the side of the hole.
piece will help fill the gap between the two layers and give the patch something to adhere to better.
roughly the size of the small gap on the other side of the hole.
Lastly, use the bone folder to carefully press the edges of the Worbla into the sole.
Now isn't that beautiful! It's a lot better than throwing away good shoes. I know that it's not the most attractive solution, but I couldn't care less because it's holding up. If the patch does loosen up, it's easy to use the hair dryer to melt it back into place again. Ideally, this would have worked better on plastic or leather soles, because it doesn't stick too well to the rubber. Still, I'm pretty happy with the result.