This Customizable US Navy Officer Dinner Dress Blue Uniform is Worn to official functions when civilians normally wear Black Tie. This is a prescribable Winter Uniform for Lieutenant Commanders and above, optional for Lieutenants and below. This is one of the most exciting features our website offers. Just choose your rank and branch (staff officers, line, etc) and then select the items you would like to include to your uniform. This way, you are guaranteed to quickly build a uniform that matches your needs.