military-issue N-3B extreme cold weather snorkel parka U.S. Air Force Men's L

military-issue N-3B extreme cold weather snorkel parka designed for the U.S. Air Force U.S. military-issue N-3B Extreme Cold Weather Parka manufactured by DJ Manufacturing Corp. The contract number SP0100-03-D-4004 indicates it was produced with a contract date around 2003. Jacket Details Type: Parka, Extreme Cold Weather, Type N-3B Manufacturer: DJ Manufacturing Corp. Contract: SP0100-03-D-4004 NSN (National Stock Number): 8415-00-376-1710 (for size Large) Materials: Outer Shell: 100% Cotton Fur: 60% Modacrylic, 40% Wool Knit: 100% Acrylic Key Information Intended Use: The N-3B parka was designed for U.S. Air Force ground and aircrews in extremely cold climates, capable of protecting down to temperatures as low as -60°F with appropriate layering.