Mitsui Outlet Park (MOP) (formally Blossom Mall) Osaka
For me, having been to outlet malls in America this was something of a disappointment. I was expecting big stores filled with discount merchandise, however it was just a regular mall like Aeon and the shops weren’t that big or very cheap at all.
There are mostly clothes stores there and all the stuff you can find more easily in downtown Osaka so to be honest it’s not really worth the trip.
Here’s google maps: