AL-1 adopted by the Navy and Marine Corps in 1947. This jacket was born in the era of post-war change, and its visuals distinguish it from other jackets, but the model number 55J13 is consecutive to the G-1's 55J14, indicating that it was classified as a flight jacket.

• Exterior: brushed cotton
• Lining: alpaca wool
• Ribbed wool
• Front zipper: aluminum treatment
• Sewing thread: Katan thread (cotton thread)
• Made in Japan