Create A Personalized Hat Choose An Option Option A. Heat Sealed Embroidery $3/Letter Description: This method uses a pre-embroidered letter that is heat & pressure applied to the cap.  This provides a very professional look but is limited to 3 characters. Option B. Heat Sealed Vinyl Lettering $6/Hat Description: This method uses heat and pressure applied vinyl which is machine cut from bulk material.  You can create a professional looking hat with up to 24 characters on 2 lines.