Carhartt Men’s Rugged Flex® Relaxed Fit Flannel Fleece Lined Hooded Shirt JacBuilt tough for cold weather work, the Carhartt Rugged Flex Relaxed Fit Flannel Fleece Lined Hooded Shirt Jac delivers warmth, comfort, and flexibility where you need it most. The cotton stretch flannel exterior is durable yet easy to move in, while the soft fleece lining and attached hood lock in warmth against the chill. With Carhartt Rugged Flex technology, this shirt jac stretches and recovers with every lift, swing, or reachso you can work