An improved expandable shoe and inner assembly are disclosed. The
expandable shoe includes an outer shell and an adjustable inner assembly
is disposed within the outer shell. The inner assembly has a first board
portion and a second board portion in overlapping engagement with each
other and a control to adjust the position of the first board portion
relative to the second board portion. The control includes a locking
mechanism shaped to engage and hold one of the first and second board
portions, a biasing mechanism to bias the locking mechanism into
engagement with one of the first and second board portions; and an urging
member having a proximal portion external of the shoe outer shell and
positioned and movable transversely to a longitudinal direction of the
shoe and in transverse alignment with the locking mechanism.
In one embodiment, a lighted visualization window provides a visualization
window to the inner assembly. The inner assembly may include size markings
through the visualization window so that a size of the adjusted shoe may
be determined as shoe size is adjusted.
