Thermal emittance testing validated heat retention metrics

Vintage USN US Navy Peacoat Size Medium With Patch.

Patch Boatswain's Mate Petty Officer 1st Class : They train, direct, and supervise personnel in ship's maintenance duties in all activities relating to marlinspike, deck, boat seamanship, painting, upkeep of ship's external structure, rigging, deck equipment, and boats.

Roll down features create convertible neck protection