Since the Airman Battle Uniform and sage boots began showing up across Air Force bases over two years ago, many variances in the standardized uniform have arisen. Reading the Air Force Instruction 36-2903, Dress and Personal Appearance of Air Force Personnel, can crack this and other wardrobe riddles applying to Airmen's attire. (U.S. Air Force illustration/Capt. Marnee A.C. Losurdo)