These stickers can be applied to various kinds of hats, and you can just stick them to the inside of your hat. You can stick them on the inside surface of the sweatband with the adhesive back, or you can sew them on the sweatband in order to fix them firmly. It can help reduce the circumference of the hat and make your hat more compliant. Features -Material: EVA foams. -Made of , it is and can be used for a long time. -The supple material of the sweat pads can fit the skin very well, without itching or rubbing pain, even if it is of exercise, it will not fall off. -The hat size-reduced tape can be attached to the inside of the hat sweatband, making your hat smaller than usual. -It is suitable for most sizes of hats on the market, easy to operate and use, and can bring you a good experience. -Good adhesion, sticks to the hat, not easy to fall off, convenient to use and more . Package list: 25 x hat size reducer stickers