Breathable and Comfortable: Enjoy year-round comfort with our breathable and baseball caps inserts shapewear. The felt material allows for optimal airflow, keeping your head cool and comfortable even in warm weather Keeping Your Hat in Shape: Our baseball caps inserts shapers allow you to keep your baseball cap in shape wherever you go, whether you store your hat, wear it while traveling, or wear it during your daily commute Sufficient Quantity: You receive 20 hat insert to keep shape, available in 4 designs, 2 colors, suitable for a variety of hat sizes, to meet your enjoyable experience in a variety of activities High Quality Materials: The crown support brim hat is made of high-quality materials. Our hat shaper insert is comfortable, breathable, flexible, not easy to dry or crack and can be reused Easy to use: Get the most out of the crown support brim cap without the use of professional tools, just place baseball hat shaper insert in the hat of and simply fold it to support the hat shape