This vintage men’s swimsuit was made in the 1940s for sailors in the US Navy. This pattern was made under contract No. N140-62236s-20189B.
These were made out of 100% wool, but they have a softer hand to the fabric than some of the civilian models of the period. They have a high waisted cut. The flapped coin/key pocket is fastened with a catseye button. The front has a cotton lining, and there is a diamond shaped crotch gusset. There is a small moth nip at the bottom of the right leg, by the side seam. They have a drawstring waist.
Waist (unstretched): 14″ (doubled = 28″)
Waist (stretched): 20″ (doubled = 40″)
Side Seam: 10″