Alien

The Alien is SCARPA's high-performance crossover ski mountaineering boot, built for uphill enthusiasts and athletes who want race-proven technology without compromising on versatility or value. Sharing the same 99mm last and Carbon Grilamid® LFT shell as the Alien 1.0, it delivers the lightweight rigidity and precision fit that serious skimo athletes demand, at an accessible entry point into the Alien family. The Speedlock Lite walk mode transitions seamlessly between uphill efficiency and downhill power, while the BOA® Fit System + cord closure locks in a glove-friendly, micro-adjustable fit on the skin track. Underfoot, the Vibram® UFO outsole handles mixed approach terrain with confidence. At 870g per half pair, the Alien punches well above its weight class.

• Carbon Grilamid® LFT Shell — Lightweight, high-stiffness shell construction delivers race-caliber power transfer and torsional rigidity across demanding ski mountaineering terrain
• Vibram® UFO Outsole — Purpose-built rubber compound provides reliable grip on mixed approach terrain, bridging the gap between boot and mountain
• BOA® Fit System + Cord Closure — Tool-free micro-adjustable fit system locks the foot precisely in place, even with gloved hands in the coldest conditions
• Speedlock Lite Ski/Walk Mode — Instant-release walk mechanism with 9°–13° adjustable forward lean lets you move efficiently on the skin track and charge hard on the descent
• Intuition® Cross Fit Tour Lite Liner — Performance-tuned touring liner delivers all-day comfort and reliable warmth across long ski mountaineering objectives and training days