This is my approach to fixing peeling shoe sole layers. I cleaned and even Dremeled the inside layers of rubber to help glue adhere, but I was like "How the hell should I apply pressure while glue dries?"...
So I figured I should easily be able to do that with some thumb tacks in the sides of the sole, and temporarily stitch it down with dental floss for a day or two while the glue dries.
Wish me luck, I used silicone glue. Not sure if that's the best glue or not for the purpose, but it's tough and flexible. Of course I did both shoes, just figured it would be more obvious what I did with one shoe showing the initial damage.
Anyways, thumb tacks and dental floss for the win to hold it together while it dries!
Edit: Confirmed, my fix is solid, even holding better than the original factory glue! Haters gonna be haters though, carry on with your downvotes if you want. Just sharing my technique of salvaging shoes for less than $5 of glue and stuff around the house.
I've actually tried Shoe Goo before years ago, but it didn't last very long for me. So this time I'm trying a different glue and different process..