• Material: 92% Nomex (Aramid), which is flame-resistant—a standard requirement for flight crews.
• Color: Sage Green (Official US Military Shade).
• Rank: The gold oak leaf clusters on the shoulders indicate the rank of Major (O-4).
• Era: While the label is heavily faded, the "DSA" or "DLA" code (usually near the top) would give the exact year. Based on the zipper style and Velcro configuration, this is likely from the 1980s or 1990s.
The label indicates a size 42 Regular. In military sizing, this generally corresponds to a Men's Medium-Large.