• Carbon Light sole made of carbon and fibreglass with a stiffness index of 10.0 • The water- and windproof Gore-Tex® Duratherm Kelvin membrane is the best for wicking away any sweat and keeps your feet perfectly insulated and warm even at -15°C • Made with Xframe® patented construction and ultralight next generation materials, the upper transfers every watt of power and provides the snuggest, even fit with no pressure points • Extra thermal coating strategically placed on the toe • Highly abrasion-resistant rubber reinforcements on tip • SLW2 dial, the only one with step-by-step and full release in a single button • The Climaflex collar made of extremely elastic Gore-Tex Rattler® membrane and highly insulating Neoprene delivers unprecedented mobility and protection from the weather • Integrated heel system ensures efficient heel retention • The Arctic GTX footbed with a four-layer aluminium and fleece construction works with the membrane to deliver outstanding warmth and insulation • 360° reflective inserts