The MCAULIFFE Shirt is the exact shirt worn by professional ballplayers under their uniform jerseys in the 1950's and 1960's. We are having it made in the same Canadian mill to the exact specifications of the original. It is made of a lighweight kroy wool/nylon knit, as soft as cotton, but more rugged and durable. This natural colored shirt has navy colored sleeves that match most Ebbets Field jerseys. Or, wear it alone for a great work-out or casual shirt. we have embroidered the classic Ebbets Field log on the chest, or choose from three popular Negro League clubs.