• N-3B Parka
  • Front
  • Hood
  • Sleeve Cuffs
  • Sleeve Pocket
N-3B Parka


Protection against sub-freezing weather conditions

  • Air Force

N-3B Parka


Item: MJN31000C1

Enter a Quantity

Product Details

Looking for a durable cold weather parka that's fashionable and our warmest yet? The USAF N-3B parka fits the bill. This Snorkel parka features reinforced elbow patches, a full-length storm flap and inset knit cuffs for durability and protection against the elements. The N-3B parka’s nylon outer shell/polyester interlining ensures that no cold air seeps in. Our hood is lined and trimmed with synthetic fur, complete with adjustable draw cord/take-up strap. If you like a tight fit we recommend sizing down from your normal size.
• The N-3B parka is one of our warmest; suitable for sub-freezing temperatures
• The 100% nylon outer shell, polyester interlining and faux fur-lined/trimmed hood make this Snorkel parka optimal for staying warm & dry
• Our cold weather parka also has a full-length storm flap and inset knit cuffs for additional protection against the elements
• The USAF N-3B parka is tough, with reinforced elbow patches, in addition to an adjustable take-up strap/draw cord in the hood

Product History

The first N-3B jackets were produced in the mid 1950s for USAF air crews who were assigned to transport troops in extremely cold climates. The parkas were originally made with a nylon outer shell and lining and a wool interlining. The interlining was changed to polyester batting in the 1970s. The long, sage green jackets became known as the “Snorkel Parka” because the fur-trimmed hood could be zipped right up leaving only a small tunnel for the wearer to look out of. The modern N-3Bs have slant pockets at the chest and flap pockets lower on the coat, and a panel that fastens with loops across the zipper to keep out wind. Today most use synthetic fur around the hood. The N-3B was the first jacket Alpha Industries made for the U.S. government in 1959 and we went on to produce it for the consumer market in the 1980s. In 1993 we introduced new colors including maroon, black and navy blue. Today we make several variations of the traditional N-3B.

Select a Region:

SizeNeck (in)chest (in)waist (in)hip (in)Sleeve (in)inseam (in)heightweight (lbs)
XS14-14 1/235-3729-3135-3732-3331 1/2Regular 5'6" to 6'130-145
S14-14 1/237-3931-3337-3933-33.531 1/2145-160
M15-15 1/240-4133-3540-4133.5-3432160-175
L16-16 1/242-4436-3842-4434-3532175-190
XL17-17 1/245-4738-4145-4735-35.532 1/2190-215
2XL18-18 1/247-4941-42.547-4935.5-3632 1/2215-230
3XL19-19 1/249-5042.5- 4449-5036-36.633230-245
4XL20-20 1/250-5244-45.550-5237- 37.533245-260
5XL20-20 1/252-5345.5-4752-5337.5-3833260-275
SizeHeight (cm)Weight (kg)Neck (cm)Chest (cm)Waist (cm)Hip (cm)Sleeve (cm)Inseam (cm)

How to Measure:

Men's Measurement Guide

Measure around base of neckline, keeping one finger between your neck and the measuring tape.


Measure around body with tape leveled on the fullest part of your chest.


Measure around your waist with the tape leveled at the narrowest point of your torso.


With arm relaxed at your side, measure from center back neck, to point of shoulder, and along the arm to the wrist (just below round bone).


Stand with heels 2—3” apart. Keep the tape leveled and measure around the fullest part of your hips.


Measure pants that fit you well, and feel comfortable. Lay pants flat on table, and smooth the front and back crease. Measure along the inseam from crotch to bottom of edge of hem.

Product Reviews

Average Customer Rating

Latest Reviews