Anyone who has Vibrams for any extended period of time loses faith in the anti-stinkiness technology they puportedly contain. But if you love them too much to give up on them there is a simple, environmental responsible remedy: vinegar.
Simple pre-wash soak:
1/2 cup of white vinegar
a few pumps of hand soap
Fill container with cool to warm water and allow to soak for a few hours.
Wash in washing machine with cool or cold water. Allow to air dry.
Tip: Washing in hot water will begin to disintegrate the binding of your Vibrams Five Fingers.