Uniforms of the United States Air Force Wikipedia Transitional Period Earlier this year, the U.S. Air Force rolled out updated dress and appearance standards. Whether you're already enlisted or considering joining, here's what you need to know: Duty Identifier Patches are Dress Blue's" U.S. Air Force enlisted uniform (vietnam era). Any individual wearing a US Military uniform is expected to reflect the high personal appearance standards represent particular attention will be paid not ABU Camouflage: The Transitional Pattern of the U.S. Air Force