Gilumza (Upgrade) 4pk Black Baseball Caps Inserts Strip Crown Flexible & Long Lasting Hat Shaper Plastic Hat Liner Support for Snapback Caps Fitted Caps Ball Sports Caps and More, 4 PK

The shaping effect is good, and it is not easy to deform. Dust proof, Good weather resistance, Waterproof, Low water absorption, Oil resistance, Chemical resistance. Specially designed to restore hat deformation. It extends the life of your Baseball caps, Military hats and more. The breathable design can absorb a small amount of sweat. When jogging or exercising, the insert maintains breathability and absorbs a small amount of sweat to reduce sweat flow to the forehead. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.