Made of 6.75-ounce, 100 cotton jersey Carhartt's long sleeve pocket t-shirt makes for perfect workwear layered or worn alone. It features a crew neck with a generous left chest pocket and side-seamed construction to minimize twisting. Ash fiber content is 99/1 polyester. Heather gray fiber content is 90 cotton/10 polyester. 100 cotton, midweight left chest pocket crew neck