SHELL : 95% POLYESTER 5% ELASTANE, LINING : 100% POLYESTER, LOWER SHELL OUTER SURFACE : 100% POLYESTER Imported 6-Panel Cap with framed COBRA silicone linear patch. Perfect Fit – Years of research brings to life the most comfortable hat we’ve ever made. 110% Comfort – Flexfit 110 sweatband wicks moisture away and provides all the Premium Materials – New technical performance material that’s lightweight and One Size Fits All – The classic snapback closure allows you to adjust your desired size.