Carhartt's long-sleeve workwear Henley is an all-purpose work shirt that is perfect for cooler days or as a layering piece. Made of 6.75-ounce, 100-percent cotton jersey, it features a rib-knit collar with a three-button closure and a left chest pocket. It also has side-seamed construction to minimize twisting and maximize comfort. Ash fiber content is 99 percent / 1 percent polyester. Heather gray fiber content is 90 percent cotton / 10 percent polyester.