You create the outfits.
When you're changing clothes when it says "outfit updated". Or something.
lol that's not what it means.
Well, I always seem to get the outfits I put together at the wardrobe at an earlier point.
There is even a list of outfits that are the ones that are randomly assigned when switching.
But if you put together a bad one theres no way to remove it from the list.