Mason Hat Blue Masonic Baseball Cap Past Master Freemason Mens Masonic Past Master Embroidered Hat. Adjustable velcro strap to fit many men. May not fit XL or XXL heads. Sturdy, 6 panel construction made of fabric which is resistant to sun and moths (yes, moths) . Vent holes to help head breath. Included with purchase is a Genuine Buy Caps and Hats Masonic Bumper Sticker.