If you are looking for professional hat sweat protector, you should take at this item. This hat sweat protector is made of , which enjoys strong durability. It can greatly meet your practical requirement, can be used for hat adjustment. Features -Color:White -Material:EVA -Size:11.00X2.00X0.50cm/4.32X0.79X0.20in - The cap size reducing tape can be applied to various kinds of hats, you can just stick them to the inside of your hat. - The hat liner pad is useful and multipurpose, simple to use, bring much convenience to you. - Adjust hat size, place the hat size reducer sticker between the hat and the sweatband or the sweatband and the , let you wear the comfortably. - Perfect for any structured hat for men, women or children. Suitable for women's hats, hats and etc. - It has a reasonable design, which can well improve the performance of your car and easily meet your installation needs. Package list: 30 x hat sweat protectors