Reuse your beloved hiking boots or winter snow boots on your skis! Allows one-size-fits-most access to a single set of cross-country skis regardless of shoe size or boot preference. It combines modern snowshoe binding technology with a cross-country ski boot sole to allow any size or shape of winter footwear to be used as a `ski boot.` Check your bindings to make sure you choose the right model. If you`re unsure what model to choose, email a picture of your bindings to [email protected] and we will let you know which model to choose! The Nordic-Step is designed for casual classic-technique cross-country skiing on flat terrain and/or groomed runs where stability and control demands are not excessive. Not suitable for skate skiing, big downhills, or intermediate/advanced classical-technique skiing. The Model NNN-BC is compatible with Rottafella NNN-BC bindings.