Nordica HF 90 R GW Mens Ski BootsFlex index 90 Last width shape 102mm This boot features new Grip Walk soles, which require a GW compatible binding. If you need this boot to fit your older, non GW compatible binding, let us know and we can change boot soles for you before we ship so this boot will work for you. Nordica's new HF series is changing skiers perceptions about ski boot comfort and ease of use. Single lever rear closure doesn't even need to be operated with your hands. No