The final model of the "B-15B" series, which was improved many times. Due to visibility problems with the "B-15C" body color, it was changed to a sage color. The last boa collar jacket of the U.S. Air Force, the "modified model" of this model gave birth to the "MA-1," which is called the perfection of the flight jacket.The fabric is made of heavy nylon twill with a glossy feel, and the distinctive collar is made of luxurious mouton boa. This flight jacket is a faithful reproduction of the "B-15D" made in Japan.Outer fabric: 100% nylon heavy twillLining: 100% polyester CENTIMETRES | INCHES LENGTH CHEST SHOULDER SLEEVE 36 62cm/24.5″ 54cm/21.5″ 45cm/18″ 65cm/25″ 38 64cm/25″ 57cm/22.5″ 48cm/19″ 66cm/26″ 40 65cm/25.5″ 58cm/23″ 52cm/20.5″ 67cm/26.5″ 42 66cm/26″ 60cm/23.5″ 53cm/21″ 68cm/27″ 44 67cm/26.5″ 62cm/24.5″ 54cm/21.5″ 69cm/27″ 46 - - - -