The Mackinaw was authorized originally for drivers but was widely worn by anyone who could get one. When the US Army recognized a need for Mackinaw coats contracts went out to many small suppliers, who produced a wide variety of minor differences in their coats. These coats were initially authorized only for drivers but photos show that they were widely popular in the AEF. Available Sizes: 38"-40"-42"-44"-46. Please mention required sized in NOTE area when placing the order.The item "US WWI PATTERN MACKINAW SHORT OVERCOAT" is in sale since Sunday, July 15, 2018. This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Personal, Field Gear". The seller is "wpg_intl" and is located in Sharjah. This item can be shipped worldwide.