Naval persons in uniform , of the enlisted personnel rank group , wear relatively seldom the dark blue jacket with the above indicated cuff titles .
Enlisted mariner in the age below 30 years prefer to wear the white shirt or blue shirt instead of the uniform jacked .
Naval persons in uniform , of the enlisted personnel rank group , wear relatively seldom the dark blue jacket with the above indicated cuff titles , because enlisted mariner in the age below 30 years prefer to wear the white shirt or blue shirt instead of the uniform jacked .