Our patented 100% natural premium-quality material is designed to put a wicking barrier between your head and your hat. It saves them from future destruction by absorbing, wicking, and trapping sweat and body oils AWAY from the brim and front, reshapes wilted crowns, and keeps your head cool and dry in the process. Our premium inserts are:- Wicking- Fade-busting- Washable- Naturally anti-bacterial (stink-free!)- Sustainable- Renewable- Reusable- Super absorptive- Chemical-free- Plastic-free- Environmentally friendly...and keep your hats looking new for years to come—without destructive washing.