Okay, I don't know why, but they were advertising this under "plus-sized" "boho" fashion.

"Dresses & Gowns"

https://usa.spell.co/collections/dresses

It's definitely not plus-sized. All the models are tall and skinny. And all the dresses are like, $250. I don't know who's going out and buying $250 dresses for fun these days, but it's not me.