Alpine ski boots suitable for men season 2016 skill level expert last 98 mm width narrow flex index 130 flex hard special features straps on boot liner rear high thermal insulation walk to ride wtr compatible adjustable flex with canting adjustable spoiler lining features anatomically mouldable boot liner outer material polyether colour red fasteners buckle fastener velcro buckle 4 x micro adjustable aluminium buckles inner material thinsulate