The Re-designed BC X12 75mm is a great upgrade from its predecessor the X11, with a stiffer Carbon cuff, plusher and warmer liner and overall more anatomical fit in the toe box. The BC X12 is a versatile 75mm backcountry touring boot featuring Cordura(R) lace covers and Thinsulate(R) lining to provide increased versatility, durability and warmth for backcountry skiers. The new, more anatomically-shaped 100% carbon cuff with two-ratchet and buckle powerstraps delivers lightweight stability, power and control. Featuring a new taller external cuff gaiters, ultra-durable Cordura(R) lace covers, Thinsulate(R) lining, and a Thermo-moldable fit, the BC X12 delivers unmatched comfort, durability and warmth for exploring off the beaten path. Features: %100 Carbon Upper Cuff Dual Density Heel Thermo Adjustable Fit Lock Down System liner Thinsulate Insulation by 3M Cordura Fabric Upper 75mm sole