Cdn Navy Chief Petty Officer 1st Class Unform

senior rank of Chief Petty Officer 1st Class (CPO1). Unlike the Canadian Army or Royal Canadian Air Force—where senior non-commissioned officers traditionally wear rank badges on their upper arms or shoulders—the Navy places rank insignia on lower sleeves/cuffs. This stems from practical shipboard history, where a sailor’s rank needed to remain visible to superiors even if they were wearing a coat or looking down from a ship's bridge or rigging.