From Polo Ralph Lauren, this hat features: Seamed bill Five-panel construction Mesh side and back panels Ventilating embroidered eyelets Twill sweatband. Lined at the front panels. Mesh facing at the interior front crown “Polo RL Beach Club Est 1967” patch at the front “52” appliquéd at the left side Adjustable snapped strap at the back 22.75" inner circumference Front panels, bill, and lining of cotton; mesh panels of polyester Hand wash or dry clean Imported.