White cotton naval undershirt featuring a square neckline bordered by a ½-inch navy-blue band. Short sleeves and straight sides with rounded hemline. Inside collar bears a black stamped marking: “HMCS”, indicating issue to a vessel of the Her Majesty’s Canadian Ship fleet. Size marking “1” printed on lower hem.
This garment was standard issue for enlisted men in the Royal Canadian Navy, typically worn under the dark blue jumper. The square neckline mirrors the sailor’s traditional collar cut, designed to remain hidden when worn under the uniform blouse.