Flatliners are designed to line shoes and kill smelly feet odors before they become deadly.
Unlike other inserts, Flatliners are specifically made thin enough to use in women’s flats. They can be placed in already stinky shoes or in new pairs as a preventative measure against smelly feet, extending the life of your favorite around-town shoes.
Flatliners are held onto shoes with adhesive. They should be changed about every 3 months or 3,000 miles.
Made in the USA.