PATENTED TUBES TECHNOLOGY: The technology provides unmatched comfort and cushioning through individually tuned tube structures that collapse and rebound as you walk. The design also provides incredible flexibility making every stride smooth and efficient. Smaller, more rigid tubes on the inside area of the heel provide extra medial support to reduce pronationTEXTILE UPPER: Lightweight mesh upper provides additional coolness and breathabilityCMEVA MIDSOLE: Compression molded EVA midsole provides optimal lightweight cushioningORTHOLITE SOCK LINER: The unique open-cell structure of OrthoLite foam creates a moisture management system, helping to move moisture away and provide a cooler, drier, healthier environmentCOMFORT: Padded collar and tongue for snug fit and extra comfort