An implement locking system for locking an implement to an implement carrier of a power machine is disclosed. A method table generating unit 144 generates a method table for each method, the method table including a pointer that is an offset form a first position of an executable program to an area where information relating to the method is stored, and additionally writes the generated method table at the first position of the class file. The resultant shoes provide a comfortable wearing experience while also giving adequate foot and ankle support.