All mountain ski boots freeride ski boots suitable for women season 2017 skill level advanced last 102 mm width wide flex index 90 80 flex medium special features with canting easy entry thermoformable shell insertable spoiler adjustable foot width lining features thermoformable boot liner canting single canting outer material polyurethane colour black fasteners buckle fastener velcro buckle 4 x micro adjustable spine tech alloy buckles strap 4