The Footjoy hyperflex 51080 shoe is pure comfort this year offering a great combination of comfort and stability and the versatility. FlexGrind 2 – High performance exoskeleton upper material that is soft and comfortable, with incredible retention properties. O.P.S (Otimised Performance Stability) Provides rear foot support and motion control. Fine Tuned Foam 2.0 – The next generation of the FTF midsole is now softer and lighter. The new EVA blend delivers super charged cushioning and a Hyper-Flexible forefoot.