NWT MA-1 QUILTED BOMBER FLIGHT JACKET XL - GUNMETAL // Unisex Alpha Industries A bomber jacket is a year-round wardrobe essential due to its versatility and easy customization. For fall and winter, this thick quilted version provides enhanced insulation as well as a water resistant shell, all of which guarantee protection from wet and cold winter days. The MA-1 is an Alpha Industries classic, first manufactured for the Department of Defense in 1948 and well-known for never going out of style.