Three pairs of deodorizing shoe insoles use charcoal to eliminate odor Footbed infused with a light, fresh scent and Silvadur technology to inhibit growth of odor-causing bacteria Shoe inserts perforated for breathability and added flexibility Soft top cover keeps feet dry for added deodorizing effect Slim design fits most men's and women's shoes (up to men's shoe size 11), and can be trimmed for a custom fit