Alpha Industries Men's MA-1 Slim Fit Flex Flight Bomber Jacket 100% Nylon; 70% Wool, 20% Nylon, 10% Cashmere Imported 100% Cotton lining Zipper closure Dry Clean Only The sizing for this jacket cannot be compared to the ma-1 flight jacket as the two jackets have different fits (standard vs core) and the variations between sizes differs between the two styles. The bomber has two flap pockets with snap closures, two interior welt pockets and alpha's signature zippered utility/pencil pocket on the sleeve with the red "remove before flight" tag.