I was a little disheartened, but decided that the simplest fix would probably be the best. I had some electrical tape wrapped around my shoes for a few days to stop further separation.

Here’s the steps I took:

1. Buy shoe glue. The type I bought simply had a picture of a shoe on it, so I just bought it. This glue was KS Brand and labelled as “Chloroprene“.
2. Open up the areas to be glued as much as possible. I don’t recommend opening parts that are still firmly glued.
3. Dust off the surfaces. Wipe with a paper towel, or in my case I just used my finger to wipe off dust and dirt.
4. Apply glue to both surfaces (keep them apart for now) then allow to dry for 10-15 minutes.
5. Carefully align surfaces then press together firmly for a minute or two.
6. Leave for a few hours to fully dry. Use heavy objects to continue to apply pressure to those spots that need it.

I went on a 100km ride the morning after fixing these, so a long cure time is not really necessary. So far they are holding out, there are no obvious signs of further separation.

You’ve just saved yourself a bundle of cash and extended the life of your beloved shoes.

Next step: go ride your bike. Cheers.