Offering abrasion resistance and wind protection in the field and on the job, the heavy-duty Filson Antique Tin Jac-Shirt is ready to get to work. Constructed with burly 10-oz. cotton canvas with a broken-in feel, it takes inspiration from vintage hunting jackets with oversized vertical-entry chest pockets, perfect for larger items. Features a snap-closure front, chest pockets and cuffs.