Armycrew Blank Washed Pigment Dyed Twill Unstructured Trucker Baseball Cap. 65% Cotton , 35% Polyester. Plain washed pigment dyed soft crown trucker cap for everyone. 2 front unstructured crown with 4 mesh back panels, low profile, 2 small air vents placed on front crown. Stiff and pre-curved bill, same color under bill. Finished with an adjustable hook and look closure. One size fits most.