Baseball caps are finished with a cloth so they do not stand rigid and furthermore when a person perspires the sweat is simply noticed on the rim of the cap. On the opposing, Patagonia kid’s trucker hats are lined with a sponge that soaks the sweat and is easily dried off preventing dirty sweaty impressions. The plastic mesh has tiny holes that provide a lot of aeration. These caps can be easily cleaned and dried and they achieve the same shape and stiffness just as they had before been washed. These caps are widely used for advertising purposes where the brand name is printed on the foam front of the cap.