While browsing through Walmarts today, I found another possible substitute for the Scunci HTWs. They’re Elements 95624. Elements is a division of Crimzon Rose Accessories.
The items I found were black and appeared to have somewhat more spandex and less cotton than the Scunci’s. However, they have a similar knit and are stretchy both lengthwise and widthwise. I haven’t tried them yet, but they look like they would work.
Good luck finding them online. I just tried a web search and found nothing.
Enter your measurements in the PE Database.