The New Columbia Columbia Meshtm Ballcap (Surplus Green/PNW Patch) Caps, unisex, Hats , Caps , General Caps, SM/MD (6 5/8-7), true, The Columbia Mesh Ballcap offers unsurpassed comfort for an all-day wear. Omni-Shade Sun Protection technology helps block damaging UV rays from reaching your skin allowing for more carefree hours in the sun. Flexfit fitted cap for optimum comfort. Ventilated back for added breathability. 55% polyester 43% cotton 2% spandex. Imported. Measurements: Circumference: 23 in Brim: 2 3 4 in Product measurements were taken using size SM/MD (6 5/8-7). Please note that measurements may vary by size.