Browse vintage M-51 military trousers, including wool field pants and cold-weather styles. Listings identify examples from the 1950s as well as later production, so the M-51 model name should not be mistaken for a single manufacturing year.

Check the label and fit

Compare waist, inseam and length measurements, plus the fabric and any liner information. Some listings show a button-in layer or other cold-weather details; confirm what is included on the specific pair.

For related bottoms, browse M-65 field trousers and the broader military field pants collection.