This vintage swimsuit is made of wool. It has a wool belt with a hammered texture buckle. There is a flapped coin/key pocket, and a built in supporter.
Waist (unstretched): 13″ (doubled = 26″)
Waist (fully stretched): 18″ (doubled = 36″)
Side Seam: 9″
1930s swim trunks sold by the R.H. Macy Company of New York. Great belt buckle. Heavy kersey-type wool, not the typical knit. Flapped key pocket. Early Talon zipper.