Boogie baseball caps usually have a trademark logo on the brim. The trademark logo is used to display the brand's logo and promote the brand image. Different brands of boogie baseball caps may have different trademark logos, usually on the front or side of the brim to highlight the brand's features. A specific trademark mark may consist of the brand's logo, name or other identifiers. If you buy a boogie baseball cap, you can check the product description or consult with the seller to find out whether there is a trademark logo on the brim.