Ideas...

[Byron]

I wish I could state the name of the fabric of some years past as used on Jantzen bikini cut suits.
There was a rubberised content I believe but far more substantial than Lycra and what a fit ! (a firm stretch and not a floppy stretch if you see what I mean).
I have never found a suit as good since, despite being a fan of Speedo and/or Mizuno leather-look.
The fabric had as I recall a surface which was slightly dimpled or honeycombed.
That is about all I can remember and the occasional look through Ebay has unfortunately not shown up one for sale to date.

(ditto to LIT)