This part of the sole keeps coming away from the boot.

I have bought 3 different glues, and attempted to mend these 3 times now. I used cycle repair glue, gorilla glue and a specialist glue for wetsuits. It still comes unstuck. I will keep trying!

I intend these boots to last for many years. I do not want to replace them.
It would be very wasteful of resources to throw them away. I am committed to not buying new clothes of any kind. They are otherwise waterproof & very practical.

Repairing shows respect & gives value to the item & the materials it is made of. Repair also shows respect to the original labour of making.