DEVICE FOR GENERATING MAGNETIC FIELDS FOR CATALYSING PHYSICO-CHEMICAL REACTIONS

摘要

The invention concerns a device for adjusting at least lengthwise a shoe according to the evolution of the size of the user's foot, said shoe comprising a sole, with a front part (28) and a rear part (30), a mounting insole (12) and a hygienic insole (14) and an upper (16) comprising a vamp (20) and a rear quarter (22). The invention is characterised in that the vamp (20) is integral with the front part (28) of the sole, the rear quarter (22) is integral with the rear part (30) of the sole and in that it comprises an elongating zone (24) inserted between said front part (28) and said rear part (30) with lengthwise blocking means.