On one of the other forums someone suggested using one of the enzymatic cleaners pet stores sell for animal stains. Since the enzymes eat up and break down bacteria and other odor causing agents in the end the area no onger smells. I know the stuff works on pet accidents so it might work with gloves. I would soak the gloves in one of the enzymatic cleaners and then run them through a regular wash. I haven't had my bike gloves long enough for it to be an issue, but that is my plan when they start to get a little ripe.