[CasthyJo]

https://rhondashear.com/collections/bras  Rhonda Shear Bras

which model are you talking about?these look promising.

I get the "Rhonda Shear seamless invisible edge body bras with removable cups."  If you went to Ebay...that's what you'd look for.   A real close match I've found is Haynes Smoothtec 4-way stretch bras.  They are very nice, good support, invisible, and relatively inexpensive.