Stiff Durable Sole: The NRG Air Carbon reinforced sole achieves a stiffness rating of 8 thanks to a blend of nylon reinforced with fiberglass and enriched carbon. Cooling and ventilation is via the AirFlow system of 5 perfectly placed vents.
Hi Tech Upper: With plenty of considered features the upper on the Core 2 literally has you covered. The toe box is just the right size to prevent numbness and a snug-fitting heel design prevents slipping. The seamless unibody material with pores across the entire surface ensures optimal ventilation.
Dial In Fit: The SLW2 retention system is the only dial style closure mechanism with step by step and full release on a single button. An extra strap across the forefoot optimizes fit security. This neat minimalist design provides unmatched adjustability and reduced pressure points.