The Carhartt Boys's Long Sleeve Workwear Henley is an all-purpose work shirt that is Great for cooler days or as a layering piece. Made of 6.75-ounce, 100% 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% / 1% polyester. Heather gray fiber content is 90% cotton / 10% polyester.