If youre looking for an all-day training companion, the Atomic Pro C3 is a great classic ski boot for you. Comfort is king for enjoying the tracks and the Atomic Pro C3 boot keeps feet warm however long your training goes on. Pro C3 also comes with the perfect foothold: the Quicklace system wraps the foot evenly, while a rigid External 3D Heel Counter delivers super stability for precise, powerful skiing. When youre in the flow, the Pro C3s Classic Flex delivers perfect natural movement for classic skiing, while the mid-cut inner boot adds all the lateral stability you need. Finally, the boot works with all 2-rail bindings including NNN and Turnamic.  Snug fit fot athletic XC skiers Prolink Racing CL Quicklace External 3D Heel Counter: Made from rigid injected material for max stability and power transmission Mid Cut: Slightly higher cut for extra lateral stability, giving your foot support for a dynamic kick Classic Flex: A specific flex for classic skiing Weight 445 g (size UK8)