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? Contact Us How do I enroll in the FLX Program? Can I get credit for purchases I made before I joined? I am already a loyalty member of one or more of the Foot Locker family brands. Does my membership transfer to the FLX Program?