MASON BASEBALL CAP Navy Blue or Black Masonic Freemason Hat BCAH Sticker Mason Ball Cap and Bumper Sticker by Buy Caps and Hats. Embroidered gold logo. Pre-curved brim and MASON on bill. Low-profile styled crown. Vent holes to help head breath. Adjustable velcro strap to fit most men up to approximately 25 inches around. Durable fabric that is easy to clean, resists fading and stains.