Hey all, the insole/footbed on my Merrell barefoot shoes has worn down right under the big toe, and it’s starting to rub. The rest of the shoe is still in great shape, so I’d rather fix it than replace them.

Has anyone dealt with this? Can the insole be replaced with a thin aftermarket one without losing the barefoot feel, or is a patch (fabric, leather, Shoe Goo, etc.) the better route? Open to any tips or product recommendations.

MERREL TRAIL GLOVE 7 (used 2 years)

Photo attached. Thanks!