Anatomy of a Boot

How plastic, steel, rubber, and leather come together to connect skier to ski.



The removable inner boot, usually made of foams, leather, plastics and textiles; provides padding for the foot to protect it from the rigid shell


The plastic exterior of the boot, usually comprising two components: the cuff and the lower shell


The removable platform—located inside the liner—on which the foot rests


The platform inside the shell on which the liner rests, usually removable; also referred to by its Italian name,


>Lugs (toe and heel):

The portions of the shell’s sole that interface with a ski binding. Must meet industry standards for size and shape; sometimes replaceable in the event of wear


The lateral (side-to-side) angle of the boot in relation to the ski. Boots can be canted to lean inward or outward, usually by grinding the sole at an angle, to give the skier better access to all fourski edges.


The shape of the interior cavity of a boot.


is a cobbler’s term for the footlike form around which shoes were once crafted

>Shaft alignment:

The lateral orientation of the cuff in relation to the lower shell; usually adjustable on at least one side of the cuff, so that the cuff can be angled to match the angle of the skier’s lower leg