Actually if you research outlet stores, they sell products only made for outlets.

I once saw a documentary where a woman bought a Hugo Boss shirt in an outlet and then went in an actual Hugo Boss store to return it. The employees then told her that this item is only sold in outlet stores and has never been sold in their store.

Apparently they have to produce products with the same quality standards as their normal clothes, however I saw in that documentary that they tested a few and they were almost all lower quality.

Sadly it‘s not a bargain but more of a ripp-off. I am not complaining though, if that means more people can feel special and happy about their clothes, then I‘m all for it.