Modular boot sole system

A ski boot system with a modular binding interface comprising:

• a shell configured to encase a user's foot and a portion of a user's lower leg, wherein the shell includes a base, toe, and heel;
• a first block releasably coupled the shell substantially sagittally below the base, wherein the first block includes a first binding interface surface extending distally from the toe of the shell, and wherein the first block includes a first sole surface configured as the lowest sagittal surface of the ski boot system;
• and
• wherein the releasable coupling between one of the first block and the shell includes a modular coupling system configured enable the releasably coupling with alternative blocks to adjust the sagittal position of an alternative binding interface surface with respect to the shell while maintaining creating an alternative a substantially constant spacing between the sole surface that is substantially sagittally positioned and the shell. the same as the first sole surface.

A method for modularly coupling alternative blocks to a shell on a ski boot so as to effectuate alternative binding interface surface sagittal positions without substantially effecting sagittal sole surface orientation, comprising the acts of:

• providing a shell configured to encase a foot and a portion of a lower leg;
• providing a plurality of blocks each including a binding interface surface and a sole surface, wherein the binding interface surface includes a surface distally extending from a toe region of the shell, and wherein the sole surface is the lowest sagittal surface of the ski boot;
• coupling a first block to the shell,
• positioning the binding interface surface of the first block at a particular first binding interface surface sagittal height with respect to the shell;
• positioning the sole surface of the first block at a particular first sole surface sagittal height with respect to the shell;
• decoupling the first block from the shell;
• coupling a second block the shell in substantially the same orientation and position as the first block with respect to the shell;
• positioning the binding interface surface of the second block at a particular binding interface surface sagittal height with respect to the shell that is different from the first binding interface sagittal height;
• and
• positioning the sole surface of the second block at a particular sole surface sagittal height with respect to the shell that is substantially the same as the first sole surface sagittal height.