Years ago, probably between 1986 and 1995-ish, I picked up a few swimsuits that were a cotton-spandex blend.
[Side note: I am a firm believer that a board like this with this type of subject matter needs to have pics, so I post them when I can. Usually I wear jammers, so this is a rarity. I seldom post pics in racer-cut briefs because I am too fat for them. But the way I take the pics and how I suck in my gut like crazy before the shutter goes off explains why I am a little less self-conscious abut posting these.]
I do not recall the brand of this racer cut suit, but the cotton-induced matte finish is punctuated by the spandex sheen you can see from the flash going off.
Blue-Stripe-Swim-brief-3 by
C J, on Flickr
Blue-Stripe-Swim-brief-1 by
C J, on Flickr
I really like the colors of this tropical print. Another brand I do not recall, this squarecut suit is really comfy. The cotton gives a matte finish but you cannot see the sheen from the spandex.
Tropical-Squarecuts-3 by
C J, on Flickr
Tropical-Squarecuts-2 by
C J, on Flickr
Finally, this black and white paisley print squarecut is from the brand Sauvage California. Its fabric content is 55% cotton, 35% polyester, and 10% Lycra. Even though it was listed as a size Large and the measurements match the size of suit in the catalog, but when I got it, it was super snug--and still is.