All mountain ski boots racing ski boots suitable for men season 2016 skill level expert last 103 mm widths average wide flex index 130 flex hard special features with canting easy entry ski walk mechanism adjustable foot width lining features thermoformable boot liner canting single canting outer material polyurethane colour white fasteners buckle fastener velcro buckles 4 x micro adjustable spine tech alloy buckles 1 x supermacro ratchet strap