Abstract: A last structure includes a main body portion and a plurality of toe portions selectively joinable thereto. A plurality of interchangeable intermediate members are adapted to be selectively connected between the main body portion and a selected toe portion, thereby to adjust the last structure to various heel heights of shoes to be formed thereon. Each intermediate member has a rear surface to abut a complementary forward surface of the main body portion and a forward surface to abut a complementary rear surface of the selected toe portion. The rear and forward surfaces of each intermediate member extend at a relative orientation different from that of other intermediate members. A respective intermediate member is connected between the main body portion and the selected toe portion by a structure to accommodate changes of orientation.