I joined FLX Rewards at Kids Foot Locker. May I still use my benefits at Champs Sports? Absolutely. Your membership status and benefits follow no matter where you shop across the Foot Locker family of brands. Related articles How can I use my points? Who do I contact if I need help? How do I manage my FLX Rewards account? What is FLX Rewards? What are the full FLX program membership terms and conditions?