Air Force Chief Master Sargent E9 Rank Insignia Patch Set. Patches are a dark Air Force blue and bright white color and ready for inspection. The patch has embroidered front and reinforced backing for long lasting material. The Air Force would have worn this rank patch on the shoulders. These would make for a great shadow box display to show off how proud you are, and you should be. Patches are new and sew on measuring 4" X 6 7/8".