The Scarpa Phantom 8000 HD Thermic is the ultimate choice for high-altitude mountaineering, crafted for extreme expeditions where warmth and protection are crucial. This mountaineering boot is engineered for the harshest environments, making it ideal for 8000-metre peaks, polar treks, and challenging alpine climbs. With Thermic's power bank operated heating system, an HDry waterproof membrane, and a multi-layer insulation system, it ensures exceptional warmth and durability in the most demanding conditions. Thermic heated technology provides adjustable warmth with three heat modes and up to 16 hours of runtime Multi-layer insulation combines Primaloft, Aerogel, and heat-reflective materials for superior warmth Integrated Recco reflector enhances visibility in avalanche-prone areas S-Tech Schoeller fabrics are PFC-free and Bluesign approved for sustainability Breathable, waterproof H-Dry lining offers moisture management and protection Gravity Lite sole with Newflex ensures lightweight