Petzl made the Vasak 12-Point Mountaineering Crampon compatible with any ski, alpine, or hiking boot for booting couloirs and traveling glaciers. The Leverlock Vasak includes step-in Fil or strap-on Fil Flex attachments for ski, telemark, or hiking boots, and the Flexlock Vasak offers hybrid compatibility for any alpine boot with a heel welt and without a toe welt. This crampon features Petzl's Antisnow anti-balling plates and 12 points, including dual horizontal front points for enhanced purchase in solid snow.