Textile stableCELL - Designation for stability that's engineered into the midsole without added weight, guiding your foot and encouraging a neutral gait. Forefoot Lockdown - Upper design with synthetic overlays that helps provide a secure and stable ride. Ortholite Sockliner - Provides extra comfort and enhanced fitting. FAASFOAM - Midsole cushioning material offers resilient, durable and lightweight performance. Forefoot Flex Grooves - Greater flexibility facilitates a more efficient toe-off and smoother transition.