The La Sportiva Boulder X is suitable for technical approach routes and vie ferrate thanks to the extra-grip sole and the toe designed specifically for crag climbing. The ultra sticky Vibram sole with climbing zone make this model the ideal choice for technical approach routes and via ferrate . The new and improved sole design provides even greater grip while climbing and the Impact Brake System offers enhanced braking power for descent routes. The soft 2mm EVA insert guarantees optimum anti shock properties. The full rubber rand offers maximum protection against abrasion while climbing. The patented Asymmetric lacing system derives from the Mythos climbing shoe project.