This tape works like magic! It will make every hat fit you perfectly! In my store, we provide it as a complimentary treat with every purchase. Our customers love it. Many types of inner bands don't allow for drawstrings such as leather, elastic, or cotton with a foam lining. Hat sizing tape has long been the preferred method of adjusting hats because it allows you to keep the inner band in its natural form and the foam molds comfortably to the head. Directions: Place the foam tape on the inside of your hat, behind the sweatband, with the sticky side facing towards the hat wall. Wrap the tape completely around the hat for the maximum size decrease, or cut the tape length in half for a more moderate decrease. Size to fit prior to removing the adhesive cover. Once the fit is correct, remove the adhesive cover, press firmly into place, and there you go!