This shirt jac takes warmth to a new level it’s made of 8-ounce, 100-percent cotton ring-spun flannel with rain defender durable, water-repellent finish the thermal body lining is made of 7-ounce, 60-percent cotton/40-percent polyester to get in and out of easily, the sleeve lining is made of nylon taffeta there are two chest pockets with flaps and button closures, an interior pocket, and double button adjustable cuffs with extended plackets