Lined Mackinaw Wool Jac Shirt - TealThis Mackinaw Wool Jac Shirt from Filson is made from heavyweight, virgin Mackinaw wool thats breathable, warm, and naturally rain repellent to keep you nice and comfortable through even the worst weather. Its tailored with a roomy, relaxed fit thats made to layer with and comes lined with soft cotton flannel for extra softness and added insulation. Finished with a snap front closure, flap front chest pockets, and a pleated back to give you a full