ALPHA INDUSTRIES MA-1 Natus Quilted Flight Jacket in Blue. - size M (also in ) ALPHA INDUSTRIES MA-1 Natus Quilted Flight Jacket in Blue. - size M (also in ) 100% poly. Hand wash cold. Front zipper closure. Detachable hood. Side welt pockets with snap button closures. Rib knit trim. Zippered sleeve pocket. Imported. ALPR-WO21. WJM48503C1. 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.