The JACKET, LINECREWMAN, IDENTIFYING, TYPE G-1 was a nylon shell jacket developed for U.S. Air Force ground crews in the early 1950s. Designed specifically to ensure crew members were highly visible to pilots while guiding aircraft, its bold colors and striking checkerboard pattern enhanced safety and communication on the flight line. As its sole purpose was to aid visibility, the jacket was typically worn over MA-1s or other uniforms.

When first issued, the jacket included a warning label stating: “WARNING: Do not wear during aircraft maintenance.” This precaution was likely to prevent confusion in low visibility, where the jacket’s design might inadvertently misdirect aircraft. It may also have served as a reminder to remove the jacket before transitioning to repairs or inspections.

Through a detailed study of vintage examples, we’ve identified the original color of this iconic garment. While most surviving pieces appear yellow and black, this discoloration is due to sun exposure and fading over time. Our reproduction restores the jacket’s original vibrant orange hue, capturing its authentic appearance.

Two versions of this jacket were produced: the J-6249 and the J-6249A. The J-6249 featured a Crown spring zipper, while the J-6249A used a dull-plated zipper. This reproduction is based on the J-6249 pattern and includes a 1950s-style black-oxided oval zipper with cotton tape, extending through the front and across the left sleeve pocket, which was designed to hold cigarettes and pencils. Unlike the original models, which typically had elasticated hems and cuffs, our version is equipped with adjustable cinches, providing a more tailored fit.

100% Nylon

Print Nylon Cloth

50s Oval-Shaped Front Zipper, Black Oxided, Cotton Tape

50s Oval-Shaped Sleeve Zipper, Black Oxided

Made in Japan