MA-1 Flex Slim Flight Jacket
  • MA-1 Flex Slim Flight Jacket
  • A New Caption
  • A New Caption
  • A New Caption



Suitable for mild or colder winter climates ranging 25F to 40F

  • Navy

MA-1 Flex Slim Flight Jacket


Item: MJM46610C1

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Product Details

The MA-1 Flex turns our MA-1 Slim Fit Flight Jacket into a blank canvas. The jacket features four hook-and-loop areas that allow for self-expression via patches. The jacket includes four patches and others can be added to customize the look to reflect your style. Check out the limited-edition patches in the Patch Program. For a more relaxed fit check out the MA-1 Flex.

  • This bomber has a slim fit.
  • The MA-1 Flex has a flight nylon shell and lining with a 100% poly fill.
  • The flight jacket is fully reversible to Emergency Orange.
  • Features Alpha’s signature zippered utility/pencil pocket on the sleeve with the red "Remove Before Flight" tag.
  • Water resistant
  • Dry clean only. Do not wash. Do not bleach. Do not tumble dry. Do not iron.

Product History

Introduced by the mid-1950s, the MA-1 became the flight jacket of U.S. Air Force and Navy pilots and ground crew. Designed for use in temperatures of 14-50 degrees F, the MA-1 had a 100% wool knit collar, waistband and cuffs. The MA-1 discarded the mouton fur collar of its predecessor, the B-15, because it interfered with the parachute harness worn by aviators. Other features of the jacket included a tab that the oxygen mask was clipped to, tabs to hold the headset wires in place and the original U.S. Air Force decal. These features were eventually removed from the flight jacket as it was adopted by other branches of the U.S. Armed Forces and equipment for pilots changed. An addition to the jacket in 1960 was the reversibility to show off an Indian Orange lining. The reason being if a plane crashed, the pilot could reverse the jacket to the orange side to signal rescue personnel. Alpha Industries' first government contract for the MA-1 was awarded in 1963. We started producing the MA-1 flight jacket for the civilian population in the 1970s. Black was added to the military sage green requirement. The jacket has evolved over the years but it is still one of our top sellers and today we produce many variations on this classic flight jacket.
Size ChartHow to Measure

Select a Region:

 Neck Chest Waist hipSleeveinseamheightweight
XS14-14 1/235.5-37.528.5-30.535.5-37.531-3231 1/2Regular 5'6" to 6'122-137
S14-14 1/237.5-39.530.5-32.537.5-39.532-3331 1/2 137-152
M14-14 1/238.5-40.532.5-34.538.5-40.533-3432 152-167
L15-15 1/240.5-42.534.5-36.540.5-42.534-3532 167-182
XL16-16 1/243.5-46.537.5-39.543.5-46.535-3632 1/2 182-207
2XL17-17 1/246.5-48.540.5-42.546.5-48.536-3732 1/2 207-222
3XL18-18 1/249.5-51.543.5-45.549.5-51.537-3833 222-237
4XL19-19 1/252.5-54.546.5-48.552.5-54.538-3933 237-252
5XL20-20 1/255.5-57.549.5-51.555.5-57.539-4033 252-267

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.

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