These shoes made it through so many years- decades- before ending up in my possession. And I've had them about 18 years, and have worn them several times, but not for the past ten years. Post-baby, my feet grew half a size. So I've had these sitting in my closet with other shoes. I was reorganizing today and I noticed that mildew smell. All my shoes are fine except for these, and this happened very recently, as I handled them only a couple months ago and they seemed fine. It has been a wet winter in terms of fog and how we've had some rain in the past weeks, and we're close to the ocean, but I've lived closer to the ocean than this and these shoes were fine then. Oh this is so upsetting. All the white 'powdery' stuff is mold. These shoes are normally an even black, of course.