I found this a while back. I haven't tried it yet, but would love to hear from those of you who have!
https://www.dealbyethan.com/RubberTreeL ... wear-MCABG
Rubber Tree Latex custom-made thong
Re: Rubber Tree Latex custom-made thong
Ordered directly from RTL a couple of years ago, with the Black Forest Green nylon fabric. It was not comfortable, although unlike another style did not fall apart. I have not ordered from them again. At that time RTL and SWIC were related (may still be), but give it a go, it might have changed.