CARHARTT. K126PRT-TALL. WORKWEAR POCKET LONG SLEEVE SHIRT. TALL. PORT. 6.75-ounce 100 percent cotton jersey knit. Heather Grey fiber content is 90 percent cotton with 10 percent polyester Ash fiber content is 99 percent cotton with 1 percent polyester. Rib-knit crewneck and cuffs. Side-seamed construction minimizes twisting. Left-chest pocket with sewn-on Carhartt label. Tagless neck label.