Olive green MA-1 flight jacket with U.S.A.F. patch, made of durable nylon material. - Model Name: MA-1 Flight Jacket - Color: Olive Green - Patches: U.S.A.F. patch, Buzz Rickson - Back Design: U.S.A.F. logo and star design - Material: Nylon Thank you for viewing. Size 36, which is American size S. It is probably equivalent to a Japanese size M. Approximate measurements are: armpit to armpit 58cm, length from the bottom of the collar ribbing to the hem 56cm, shoulder width 46cm, sleeve length from the shoulder 60cm. Please allow for some margin of error.