Racing ski boots suitable for men season 2016 skill levels advanced expert last 95 mm width narrow flex index 110 flex medium special features adjustable flex straps on boot liner rear easy entry thermoformable shell lining features thermoformable boot liner weight 2 236 g outer material polyurethane colour red fasteners buckle fastener velcro buckle 4 x rsx 7000 buckles strap 55mm dual strap shoe technology memory fit liner world cup ser