Charcoal & Saddle are 100% brushed cotton twill; Blaze is 100% polyester; Charcoal & Saddle with a mesh back color are 100% brushed cotton twill fronts panels and bill/100% polyester, soft trucker ; Blaze with a mesh back 100% polyester front panels and bill ; Professional fit; Structured, pro shape, six-panel; Slightly curved bill; NO Sweat moisture-wicking sweatband; Solid backs are hook-and-loop closure; Mesh backs are snapback closure;