Adidas Outlet has 2 levels with both Adidas and Reebok items. So many options from shoes, footballs, socks, jerseys, jackets, joggers, t-shirts, gym bags, to their sponsored football club trackers. True the prices maybe more than in the US, but when in Rome.... or Germany. Haha Plus some of the items wouldn't be found in the US.
You can always go across the street to the other Adidas store. That's of course the normal retail price, but if you're really into having the latest and newest item that's the stop. It's just fun to look at their newer designs.
Side note: If you're fortunate enough to know an employee of Adidas ask them to give you a tour of the campus. It's so awesome to see all the buildings and see inside. Go through the history of Adidas exhibit. Super cool seeing the timeline of their line. read more