Antimicrobial Shoe Spray is the first shoe spray to combine colloidal silver and undecylenic acid in a single formulation. It has antibacterial, antifungal, and sporicidal properties making it effective at eliminating foot odor and preventing fungal growth. The active silver ions can penetrate the leather and insoles to effectively keep footwear microbe-free over an extended period. Antimicrobial Shoe Spray is safe, non-toxic and contains no fragrance or dyes. It is hypoallergenic and rapidly dries, leaving no oily residue.