White cotton naval undershirt with short sleeves and a ½-inch faded navy-blue band around a square neckline. The hem bears a hand-marked inscription in black ink reading “L/C STEVEN FORREST”, suggesting ownership by a Leading Cook or Leading Clerk in the Royal Canadian Navy.
The shirt’s design follows the standard mid-20th-century naval pattern, worn beneath the dark blue jumper. The squared neck cut corresponds with the naval tunic’s sailor collar to ensure a seamless fit.