Crispi Briksdal MTN GTX question

[Paretree]

I returned home after an awesome elk chasing adventure in the mountains of Colorado wearing my new Crispi boots. Overall, they held up really great for 55+ miles in the backcountry. I was curious on others opinions on how to go about repairing two small spots on the boots where the bottom rubber is starting to separate from the fabric above. Back in my skateboarding days the product “shoe goo” or whatever was the go to for fixing soles etc. to get you by, but before I went and did such thing I wanted to see if maybe there was a better or more recommended product by the people of rokslide. I’ll attach a couple pics, thanks.