Enhance the longevity and appearance of your wide-brimmed hats with this hat brim support insert. Designed to fit securely within the hat, it prevents the brim from bending or losing its shape. This insert is ideal for security hats, ensuring they remain stylish and functional, even with regular wear. Features -Color:Black -Material:Plastic -Size:15.00X9.50X1.00cm/5.89X3.73X0.39in -Comprehensive face protection: the tshaped front support design effectively shields your face from sunlight and wind, ensuring comfort and safety -Optimal sunshade: the wide brim design offers sun protection, reducing the risk of uv exposure -Wind stability: the large brim support design enhances the hat's stability, preventing it from being easily blown away by strong winds -Shape preservation: the hat support structure ensures that the hat maintains its shape, providing a more structured and stylish appearance -Versatile compatibility: suitable for security hats and various other types of headwear, allowing for easy replacement and match with different hats Package list: 20 x hat liner