Rinku Premium Outlets
This outlet mall is in the Rinku Town across the bay from Kansai International Airport and many tourists from other countries visit here. In August of 2020, in commemoration of its 20th anniversary, the mall was expanded for the 5th time into the largest outlet in western Japan.
Not sure if the sales are over, but there really aren't any discounts now. It's actually more expensive than shopping in the city.