These vintage trunks were made in the late 1940s from the new “Day-Glo” fabric, made under patents 2417383 and 2417384. It certainly lives up to the claim of “fluorescent”. They have an elasticized waist (the elastic is still good), a full mesh liner, and a flapped, buttoned coin/key pocket. Postwar California beachwear at its finest. There is some fading, but it blends in somewhat with the shininess and day-glo effect of the fabric. With the waist, I would recommend these for a size 34-36.
Waist (unstretched): 13″ (doubled – 26″)
Waist (stretched): 20″ (doubled = 40″)
Side Seam: 12″