Lighter than ever, the new Helix is our newest, lightweight 3-buckle boot that skis like a 4-buckle. It raises the bar for classic ski tours and go-fast ski mountaineers who count grams, yet expect unparalleled control of their new, wider touring skis. The new Helix is based on the popular Helium, shaving weight wherever possible without sacrificing function, skiing control, and durability. Its new liner, walk mechanism, sole, and buckle catches all contribute to its featherweight status. The Helix's multi-injected Flex Insert is tuned for easy touring and scrambling. The High Overlap panel provides the forward contact and skiing control of a much bigger 4-buckle model-a huge advantage in such a tourable boot. Choose Helix for long tours and more technical terrain that requires scrambling and crampon work.