The Phantom Tech HD is an elite alpine boot designed for ice climbing and high-altitude mountaineering. It features HDry® waterproofing with Schoeller® Ecorepel Bio gaiter to keep feet dry. PrimaLoft® Gold insulation offers excellent warmth-to-weight ratio, while the Carbon Tech 3 SL midsole with Aerogel blocks cold transfer underfoot. The Vibram® Durastep sole provides stability and traction on mixed terrain. Sock-Fit XT construction and Fast Lock system ensure a precise fit. Compatible with automatic and semi-automatic crampons. Equipped with a RECCO® reflector for enhanced alpine safety.