Mesh upper. Rearfoot GEL technology: Shock-attenuating material placed in the midsole of the shoe for cushioning and shock absorption. AMPLIFOAM PLUS cushioning: Midsole cushioning that provides a more soft and comfortable ride than standard AMPLIFOAM. OrthoLite Hybrid Max Lite sockliner: Designed to help provide advanced moisture management, breathability, and cushioning properties. Molded rubber outsole.