Semi-auto version of the XLC Nanotech. Features the same lightweight materials and construction as the hyperlight XLC crampons with the addition of innovative Sandvik Nanoflex® steel reinforcements on the front points for increased durability, strength, and penetration on hard ice and snow. The semi-automatic binding is designed for a secure fit on most semi-rigid mountaineering boots. For telemark or A/T boots, use automatic bindings.