OMG dude I have the same problem, for what they charge for them, the Company should exchange them...I only got 2 seasons out of them and they reak like hell...OMG...I want to puke! I hear a lot of people complaining of the same issue.

A neat little trick if your feet and/or sandals stink is to soak them in regular tea. Keep your sandals in there for a couple of hours (feet like 10 minutes) and repeat 1-3 times and problem solved.