Alpha Industries MA-1 Jacket. A great flight Jacket from Alpha Industries. The MA 1 Dark Side hooded flight jacket offers winter protection along with style. Reflective arm pocket, ribbed cuffs, RBF tag, Large back print with full moon and lettering, The jacket is cut to a slim fit, Made of 100% nylon, Filling 100% polyester. Alpha Industries is an American clothing manufacturer founded in 1959 in Knoxville, Tennessee. Initially as a contractor to the United States military, the company grew into an international commercial seller of American military style and fashion apparel.