Description - Black one piece swimsuit from the 60s with an attached belt. It has flexible but semi firm shaped cups

Details

Brand - Sirena

Size - approximately a modern XS-Small but with a larger bust. I tried looking up how to determine cup size and I think it's possibly a D cup but please compare measurements in a swimsuit that fits you well. 

Chest - approximately 16.5" pit to pit (stretches to 17.5"), 11.5" across below the bust (stretches to 14")

Cups - 8" across, 6.25" top to bottom

Waist - approximately 11.5" across, stretches to 14"

Hips - 16" across, stretches to 18.75"

Leg Opening - 9" across, stretches to 13"

Shoulder to Crotch - 29", stretches to 33"

Condition - There is a small amount of pilling on the bum but I don't see any other issues