All mountain ski boots alpine ski boots suitable for men season 2016 skill level expert last 100106 mm widths average wide flex index 130 flex hard special features adjustable foot width easy entry removable toe and heel pads adjustable flex thermoformable shell lining features thermoformable boot liner outer material polyurethane colour black fasteners buckle fastener velcro buckle 4 x micro adjustable aluminium buckles strap 45mm velcro strap