STANKEEZ is a non-adhesive, flexible foam insert that sits comfortably on your hat’s inner sweat brim. This patent pending technology creates a protective layer between your head and your hat that absorbs sweat, repels odors, and blocks stains. Unlike many headwear liners, STANKEEZ is reusable, hand washable, and interchangeable on most hats. It is made with antimicrobial material and designed and manufactured in the USA.