Patent attributes
One embodiment of the present invention relates to a ski boot system including an upper shell, lower shell, and an articulation system. The upper and lower shell function to enable a user to move their encased foot in various dimensions/orientations corresponding to anatomical supination, pronation, dorsiflexion, and plantarflexion. The articulation system selectively affects the articulation freedom between the upper and lower shells in locked and unlocked configurations. The articulation system includes a lower shell coupler and an upper shell coupler coupled to the lower and upper shells, respectively. The locked configuration of the articulation system includes engaging the upper and lower shell couplers to restrict freedom between the upper and lower shell. The lower shell coupler is coupled within a recess in the lower shell that substantially restricts movement to a single orientation corresponding to coronal rotation.