Abstract: A ski boot is constructed with a relatively rigid bottom foot enclosure adapted to couple with a bottom traction component comprised of heel and sole portions. Traction components with traction surfaces of varying characteristics, dependent upon their intended use, may be interchangeably installed on the boot through snap lock elements integral with the foot enclosure and traction components.

Abstract: A pliable inner boot for insertion within a rigid outer shell of a ski boot is formed of resinous foam material. The inner boot is bifurcated at the front, and is provided with recesses in the vicinity of the shin region and preferably at the heel pocket. These recesses soften the feel of the inner boot at the shin and ankle regions when it is compressed by closure of the rigid outer shell.A pliable custom fitting reservoir (fit pack) is interposed between the rigid outer shell and the inner surface of the inner boot in the vicinity of the heel pocket and the instep portions of the inner boot. This reservoir may be either integral with or separate from the inner boot. It may include a conduit adapted to receive a liquid resin reaction mixture from a source remote from the ski boot. Alternatively, the fit pack may contain isolated components of a reaction mixture which are mixed by kneading just prior to use.

Abstract: A pliable inner boot for insertion within a rigid outer shell of a ski boot is formed of resinous foam material. The inner boot is bifurcated at the front, and is provided with recesses in the vicinity of the shin region and preferably at the heel pocket. These rcesses soften the feel of the inner boot at the shin and ankle regions when it is compressed by closure of the rigid outer shell.A pliable custom fitting reservoir (fit pack) is interposed between the rigid outer shell and the inner surface of the inner boot in the vicinity of the heel pocket and the instep portions of the inner boot. This reservoir may be either integral with or separate from the inner boot. It may include a conduit adapted to receive a liquid resin reaction mixture from a source remote from the ski boot. Alternatively, the fit pack may contain isolated components of a reaction mixture which are mixed by kneading just prior to use.

Abstract: A ski boot is constructed with a relatively rigid bottom foot enclosure, a somewhat more flexible cuff portion pivotally connected to the foot enclosure at the axis of the ankle, and an even more flexible spat portion arranged to close over the upper portion of the foot. A bottom traction surface comprised of heel and sole portions is removably connectable to the boot. The bottom of the foot enclosure and the traction element are mutually adapted to provide a variable cant for the foot enclosure with respect to the bottom of the traction element. A removable inner boot of soft cellular foam material is provided within the foot enclosure, and is slit down the front to facilitate foot entry without a tongue. The inner boot is also provided with external spacing tabs in the vicinity of the lower ankle to ensure a snug fit around the heel. The cuff portion is releasably engageable by a spring biased connector located at the back of the boot.