Shoe Goo has been praised a few times for extreme fixing of footwear.
I don't know if I have a different product with a similar name but what I have seems to be just like Bostik - smells the same and is a thin clear contact adhesive.
O.K. for sticking soles back on and other similar jobs, but I gained the impression that it could be used to repair worn heels and other more major problems which might need the sole building up.
Cheers
Dave R