Isis Sandals

[lilbrosj66]

Wondering if anyone can give me some info on the differences between the original Isis sandals and the replacement versions that CTVT is putting out. The ones I have are pretty rubbery and have a YY on the inside of the heel. Not sure if these are original or replacement.

Thanks!

[lilbrosj66]

So I just looked again and one has a Y and the other has a YY. Why?