Proud Army Dad Baseball Cap Black Patriotic Mens U.S. Military Hat PROUD ARMY DAD Black Ball Cap and Buy Caps and Hats Army bumper sticker. Embroidered. Standard length bill. Durable fabric that resists fading and stains. One size fits many. Adjustable strap fits up to approximately a 25 inch head. Pre-curved bill. Structured hat with mid-profile crown that most men like.