As you can see, there's not much here in terms of actual clothing -- there's a black square of material covering Bianca's boobs, a black cross on her butt crack, and a black landing strip covering her vagina ... and that's about it.

Oh, and she's wearing some black boots/leggings running all the way up to her upper thighs. Very minimalist, to say the least.

Bianca's modeling for a look from designer Mowalola Ogunlesi who Kanye had previously hand-picked to help lead the Yeezy GAP team.

The fashion line definitely won't be for everyone ... and Bianca's certainly showing some confidence by basically going nude here.

This outfit might explain why Bianca's been hitting the gym ... remember, we saw her and Ye going for a workout together Monday in WeHo, right after they'd hit a Chick-fil-A drive-thru for some odd pre-workout fuel.