Engineered Air Mesh Upper - Superior breathability and performance keeping you dry and comfortable. EVERFIT: Upper - Lockdown technology that wraps and supports the midfoot whilst still promoting flexibility. Reflective Overlays - Increase visibility in low level lighting. Molded rebound OrthoLiteÂ® sockliner - Provides superb step in comfort and energy return. FaasFoam+ Midsole - 25% lighter than Fassfoam delivering signature comfort and spring with every step.