* ALL NEW Tecno 3 buckles independently adjust fit across the forefoot and toe.
* IMPROVED Vent Carbon Sole®: Same incredible stiffness with closeable vents.
* Adjustable Heel Retention Device® eliminates heel lift.
* NEW Comfort Fit insoles with memory foam for lightweight support.
* Lighter, more ergonomic Soft Instep Closure System® and padded tongue eliminate pressure points.