Uniform Tips: Blues Published Dec. 21, 2009 17th Training Wing Public Affairs GOODFELLOW AFB, Texas -- Blue Blouse: Ensure bottom of blue blouse is not visible below the bottom of service coat, pullover or cardigan sweaters and lightweight blue jacket. Rank on sweaters: On the pullover or cardigan sweaters, officers and senior noncommissioned officers wear shoulder mark rank insignia. All other enlisted members wear metal rank insignia 5/8 inch from edge and centered. Center horizontally on the epaulet, with bottom of insignia 1-inch from shoulder seam.