Improved expandable shoe and shoe assemblies

Extensible shoe comprising a front outer assembly; a rear outer assembly; an enlargeable segment that is attached to the front and the rear outer assembly to define a shoe outer shell, wherein extending the extensible segment at least partially along each side of the outer shell and transversely across the floor of the outer shell; and disposed within the outer shell adjustable inner assembly, the inner assembly includes a first plate portion and a second plate portion in overlapping engagement with each other and a controller for adjusting the position of the first plate portion relative to the second plate portion, thereby a dimension of the inner assembly and thus a corresponding dimension of the shoe set, wherein the controller comprises: a locking mechanism that is designed so that it acts on the first and / or second plate portion and holds it; a biasing mechanism for biasing the locking mechanism into engagement with the first and / or the second plate portion; and a pressing member having a proximal portion ...