All mountain ski boots suitable for men season 2016 skill levels expert advanced last 102 mm width wide flex index 120 flex hard special features with canting ski walk mechanism high thermal insulation walk to ride wtr compatible anti slip sole outer materials polyurethane polyolefin colours grey black fasteners buckle fastener velcro buckle 4 x micro adjustable aluminium buckles strap 50mm velcro strap inner material thinsulate liner thermo