When you take off your VIAs, wipe any water off with a dry towel if they have been submerged or drenched in water. Leave them out in a dry and ventilated area. If the water accidentally gets into your shoes in the space between the collar and your feet if you’ve walked through deep water, stuff the shoes with newspapers and/or leave them in a dry and ventilated area to help them dry completely.
It’s highly recommend when you are not wearing your VIA shoes to store them in dry and ventilated areas. Properly maintenance and storage of your VIA shoes will keep them functional as long as possible.