The present invention relates to a hat anthem that is configured on the inside of the various caps to be described in more detail to insert a pressure buffer in the crimping portion of the hat anthem to prevent the compression marks of the head when wearing the hat and to soften the fit The surface of the contact portion 12 is cut to a certain length to form a notch groove 14, and relates to a cap antenna in which the pressure buffer 20 is inserted into the notch groove 14 of the contact portion 12.
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