All mountain ski boots suitable for women season 2016 skill levels advanced expert last 100 mm width average flex index 110 flex hard special features with canting ski walk mechanism anti slip sole walk to ride wtr compatible outer material polyurethane colour red fasteners buckle fastener velcro buckle 4 x micro adjustable aluminium buckles strap 50mm velcro strap inner material thinsulate liner thermo optisensor 3d t1 women series rossigno