The X-Alp Summit is an great shoe for all-day mountain bike adventures. Fully redesigned from the ground-up, the X-Alp Summit shoe receives trickle-down technology from our flagship X-Elevate trail shoe, including an Nylon composite sole that balances pedaling efficiency with walkability and an Grippy Vibram ECOSTEP rubber outsole that will help you navigate the gnarliest hike-a-bike sections. An L6 BOA® Fit System works alongside the Velcro toe strap to provide an comfortable, secure fit. The synthetic leather upper features an plethora of perforations to improve ventilation and allow your feet to dry out after creek crossings. Mountain biking can be rough work, so we reinforced the toe box to ward off rock strikes.