Carhartt"s short sleeve workwear pocket t-shirt is an all-purpose work shirt that is perfect in warm weather or for layering when it gets cold. It and rsquo,s made of 6.75-ounce, 100 cotton jersey knit and features a rib-knit collar and a left chest pocket. It and rsquo,s also been designed with side-seamed construction to minimize twisting and maximize comfort. Ash fiber content is 99 cotton/1 polyester. Heather gray fiber content is 90 cotton/10 polyester.6.75-ounce cotton, midweight left chest pocket side-seamed construction