You might want to invest in some really nice bras and panties come spring–you know, the kind you won’t mind everyone seeing. That is unless you want to wear these looks directly off the Paris runways–in which case, just throw them out.

There’s always a bit of nudity on the runways, especially in Paris where they just don’t care as much, but from completely sheer frocks, to hip-high slits (and Karlie Kloss’ bare bum closing Dior), we’ve seen more of models than usual. While we don’t mind a little nudity on the runway, let’s just hope this trend doesn’t catch on with the red carpet crowd (Lindsay Lohan, we’re looking at you).

And now, without further ado, our favorite peek-a-boo moments from the collections.

Photos: Imaxtree