I joined FLX Rewards at Champs Sports. May I still use my benefits at Foot Locker? Absolutely. Your membership status and benefits follow no matter where you shop across the Foot Locker family of brands. Related articles How do I manage my FLX Rewards account? If I return my item, will I get my FLX Cash back? What are some benefits to registering for a Champs Sports account? Do my points expire? How can I use my points?