Engineered woven upper: Breathable material helps keep your feet dry. GUIDESOLE technology: The curved sole design of our GUIDESOLE technology helps reduce ankle flexion and absorb shock to help you run easier and longer. FF BLAST PLUS cushioning: Midsole foam that provides a blend of cloud like cushioning and a responsive ride that is lighter than FF BLAST. FF BLAST MAX cushioning: One of our most energetic midsole foams that’s complemented with cloud-like softness and a responsive energy return in each step. EVA sockliner: Sockliner that provides cushioning performance.