Sole for sports shoes - has openings in side of heel in which reinforcing rods are inserted for use on hard ground

摘要: The sole is for sports shoes and used on hard ground. heel (2) of relatively supple elastic material has several openings (6) in it accessible from the edge (3) sole. Reinforcing rods which are interchangeable inserted openings. section opening (13) narrower than rods. made solid plastics that can be compressed or flexed. One end each rod a collar rests against