First of all, the quality of the fabric and stitching was outstanding. I don't go to swimming pools so no chlorine. Also no sun blocker. I wash them by hand in warm water and a little handsoap. Nothing else touches the suits but my body, seawater and some handsoap.
I still have a string bikini from HOM from 1980 and it is still in good shape. It is a little tight now but that is me.