This lightweight, flame-resistant Carhartt® T-shirt is perfect to layer or wear alone. It's made of 6.5-oz. flame-resistant knit, a blend of 55% modacrylic and 45% cotton, and is NFPA 70E compliant. Features a work-functional chest pocket, stretchable spandex-reinforced rib-knit collar and side-seam construction to minimize twisting. Available in Navy and Gray. Big style available in 3XL and 4XL.