Masonic Baseball Cap Freemason Mason Hat Mens One Size Black Masonic Cap and Bumper Sticker by Buy Caps and HatsMason on the back strap of the cap. Embroidered Masonic emblem. Adjustable velcro strap to fit most men. Decorative bill with dark royal blue and white embroidery. Cool, air mesh designed fabric, which is great in hot, humid conditions as it allows the head to breath.