What is the FLX Program? The Foot Locker FLX Program is a loyalty program through which you can earn points (“XPoints”) and later redeem them for offers, services, events, and much more. Related articles What are the membership rules? How do I enroll in the FLX Program? I am already a loyalty member of one or more of the Foot Locker family brands. Does my membership transfer to the FLX Program? Can I get credit for purchases I made before I joined? Do my XPoints expire?