I’m sure it was made to fit her (no way any of this came from Party City), but…still.
I cannot imagine that Kardashian’s top, especially, is even remotely comfortable.
She’s used to squeezing her body into supremely form-fitting clothing, so it might work just fine for her, but most of us would not be able to handle this for the amount of time it takes to put it on and stand around for a photo, even.