Pit to pit chest 21 inches..... Shoulder seam to shoulder seam 17.5 inches. Arm length shoulder seam to end sleeve 25.Armpit to sleeve end is 19.5. Rear collar down back to end of knits 26 inches. This is a very desirable jacket in size 40-42. The item "Original WWII A2 Flight Jacket Perry Sportswear Size 40 Air Force US Army" is in sale since Tuesday, June 8, 2021. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Other US WWII Original Items". The seller is "privatescreening" and is located in Seattle, Washington. This item can be shipped worldwide.