Open mesh upper promotes maximum breathability. Synthetic overlays deliver durable, targeted support and help lock the foot over the midsole for a more secure fit. RUNDRY collar lining wicks away moisture to keep feet cooler and drier. Molded EVA ComfortLite Socklinerâ„¢ contours to the shape of the foot to better support the arch and reduce peak pressure points in the forefoot. PowerGridâ„¢ midsole features GRID technology to help center the foot, absorb impacting shock and distribute pressure, for a superbly smooth and responsive ride. SRC (Super Rebound Cushioning) Impact Zone attenuates impacting shock and promotes a smooth transition. iBR+â„¢ rubber outsole provides three times more cushioning while being 33% lighter than standard blown rubber. XT-900â„¢ carbon rubber outsole offers supreme traction and long-lasting wear. 8mm heel-to-toe offset. Imported.