Abstract: An articulated casing for ski boots comprises a plurality of rigid sections articulatedly interconnected for vertical swinging movement relative to each other about horizontal axes. In a preferred form, four such elements are provided, one comprising a sole or base, another comprising an upper which is pivotally mounted to the front of the base, and which may be in two parts that swing about axes parallel to the length of the base, and a third and fourth forming the front and rear of a boot top, at least one of which is pivoted to the rear of the base, the other being pivoted also to the rear of the base or to the rear of the upper. The various elements can be latched together in closed relationship, in which case they fold down upon each other to internest. Means are provided for securing the articulated parts in extended or use position; and the same means may hold the parts in the folded nested position. A waterproof sock can be provided within the casing.

Abstract: Apparatus for connecting the leg of a skier to a ski comprises a casing comprised of rigid sections articulatedly interconnected for vertical swinging movement relative to each other about horizontal axes perpendicular to the length of the ski. In a preferred form, four such elements are provided, one comprising a sole or base, another comprising an upper pivotally mounted to the front of the base, and the third and fourth forming the front and rear of a boot top, at least one of which is pivoted to the rear of the base, the other being pivoted also to the rear of the base or to the rear of the upper. The various elements can be latched together in closed relationship; and means are provided for deliberately unlatching the elements to free the skier's foot, or for automatically unlatching the elements upon excessive forward or rearward bending or force application, or excessive torsional force. A waterproof sock can be provided within the casing.