The Northwave Extreme Pro 3 cycling shoe is designed for long runs in warm weather. Keeps you cool and comfortable during your daily runs. ARS (Anatomic Retular Support) technology creates an exoskeleton which adapts to the unique shape of our feet and, together with the Powershape Carbon 15 outsole, ensures optimal force transfer with every pedal stroke. To keep our feet cool during the summer heat 3 air intake holes located on the sole and mesh upper and X-DIAL SLW3 adjusters on a dual-zone closure distribute pressure evenly across the top of the foot for a comfortable, secure fit.