Richardson Acrylic-Wool Blend Flatbill Trucker 511A modern take on the classic trucker, this flat bill cap is constructed from an acrylic-wool blend with a polyester mesh back.,80/20 acrylic/wool front and 100% polyester back,97/3 cotton/spandex front and 100% polyester back (Green Camo),Structured,High Pro shape,Flat bill,Standard sweatband,Adjustable snapback closure,**