Wear it as a layer. Wear it by itself. Wear it with pride. It's as rugged and dependable as your favorite hammer.,Durable 6.75-ounce, 100% cotton jersey knit,90/10 cotton/poly (Heather Grey),60/40 cotton/poly (Carbon Heather),Rib knit crewneck and cuffs,Tagless neck label,Left chest pocket,Side-seamed construction minimizes twisting,Carhartt label sewn on left chest pocket,Loose fit