Authentic US military goods or military "style" items.
Military surplus are goods that are sold or otherwise disposed of when no longer needed by the military. Entrepreneurs often buy these goods and resell them at surplus stores. Usually the goods sold by the military are clothing, equipment, and tools of a nature that is generally useful to the civilian population, as well as embroidered patches, name tags, and other items that can be used for a faux military uniform. Occasionally, vehicles (jeeps, trucks, etc.) will be sold as well. Some military surplus dealers also sell military surplus firearms, spare parts, and ammunition alongside surplus uniforms and equipment.
Demand for such items comes from various collectors, outdoor adventurers, hunters, survivalists, and players of airsoft and paintball, as well as others seeking high quality, sturdy, military issue garb. The goods may be used, or not. Some merchants of surplus goods also sell goods that are privately manufactured in military standards.