4-ply, balanced blend of cotton and synthetic yarn withstands repeated launderings without shrinkage. Colorfast colors will not fade with repeated launderings. Looped ends and tail banding reduce tangling for like-new performance after every laundering. Rubbermaid® Web Foot® Shrinkless® Wet Mops contain antimicrobial product protection, which inhibits the growth of bacteria that cause odors & stains.