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.