Ok I gotta figure out what the deal is with the dress Jessie was wearing.
It doesn’t feel like Mattel’s usual choice of fabric, doesn’t have any tags, and is half-print on the bodice.
That shiny tricot fabric screams late 1980s/early 1990s to me, and Mattel did use it a lot back then, in lower price outfits-sold-separately (especially those multi-dress gift packs.) But. Yeah, it doesn’t look like Mattel.