MA-1 Flight Jacket MA-1 Flight Jacket Self: 100% nylon Filling: 100% polyester Knit: 88% acrylic 11% polyester 1% spandex. Made in China. Dry clean only. Front zipper closure. Patch logo detail at hem. Ribbed neckline, cuffs and hem. Sleeve zip pocket with grosgrain pull tab. Ripstop fabric. ALPR-WO94. WJO53500C1. Since setting up shop in 1959, Alpha Industries has supplied men with the best in military-inspired fashion. Formerly manufacturers of flight and terrain jackets for the Department of Defense, these Alpha Industries takes their technologies and soldier style to better suit the everyday guy.