The Dickies Portland flannel shirt is lined and keeps you warm during the cooler months with its polar fleece. With its stylish checkered quilted lining, this flannel shirt can handle low temperatures with ease. The term "thermal shirt" says it all. It offers high wearing comfort thanks to its excellent craftsmanship. Equipped with chest pockets, side entry pockets, and a snap-button front, it can be worn as a shirt or a jacket, depending on your mood. It runs slightly larger, making it very comfortable, and there's even room for a sweater underneath.