All mountain ski boots alpine ski boots suitable for men season 2017 skill level advanced last 102 mm width wide flex index 100 flex medium special features with canting anti slip sole easy entry lining features thermoformable boot liner canting 15 weight 2 197 g outer materials polyurethane polyether colour red fasteners buckle fastener velcro buckle 4 x aluminium buckles strap 40mm velcro strap shoe technologies mono injected shell