99.9% pure silver against bacteria and athletes foot. The secret lies in the 3 advantages of the “Silver NODOR® Terry Loop construction”: 1. sweat can flow from the foot trough the yarn loops. Those create a buffer zone, which does not absorb moisture due to silver finishing. The sweat evaporates on the outside and stays resistant. 2. The body warmth activates the “Silver NODOR®”, which releases charged silver ions. Harmless for humans, lethal for bacteria and hence for unpleasant odors. 3. Hundreds of microscopic loops work like rasp, scrape off dead cells and smooth the skin.