Rubbermaid Web Foot Wet Mops contain antimicrobial product protection, which inhibits the growth of bacteria that cause odor and stains. Rubbermaid Web Foot Shrinkless Wet Mops have antimicrobial product protection, which inhibits the growth of bacteria that cause odors and stains. Balanced blend of 4-ply cotton and synthetic yarns resists repeated laundering without the need for synthetic yarn. Display ingColorfast color after every flush will not fade with repeated laundering