This is the same top/bra that Jessica Lewis used throughout her time in Survivor: Millennials vs Gen X. Although it was owned by Jessica, it is not screen-used (this particular one was auctioned off for charity).
Jessica had a strong alliance with David Wright and Ken McNickle, and was in a pretty good position up until her fateful exit on Day 30, when she - devastatingly - became only the third person in Survivor history to be eliminated via the rock draw tiebreaker. Jessica is also remembered for being the first person to find a Legacy Advantage and for being saved early on in episode 4 ("Who's the Sucker at the Table?") when David Wright played a hidden immunity idol on her, negating all votes cast against her at that tribal council.
The bra/top has been signed by Jessica, and cutely inscripted: "I made the right choice. I just picked the wrong rock."