These devices use UVC-light--the same technology used to sanitize hospital surfaces--to eliminate 99.99% of the bacteria that cause unpleasant odors in shoes. Unlike sprays or powders that merely mask odors, the UVC light penetrates bacterial membranes, impairs their DNA, and kills the microorganisms that cause unpleasant smells and athlete's foot. Unlike chemical cleaning agents, the UVC light does not leave residue and it reaches into shoe crevices that sustain germ vitality. The sanitizers simply slide inside footwear and sanitize the shoes in 45 minutes. Both shoe sanitizers are powered simultaneously by the included AC adapter. Includes two reusable bags that each accommodate a shoe and a sanitizer and keep the UVC-light contained during use. Specify shoe sizes S (Men's 6 1/2-8; Women's 8-10), M (Men's 8 1/2-10; Women's 10 1/2-12), L (Men's 10 1/2-13; Women's 12 1/2-15). (3 1/3 lbs.)