portions of the sock have an elasticized knit structure with an elasticity graduated from part to part application_number US 95127497 A description referring to the drawings in particular a sock according to the invention generally comprises an edge or cuff 11 a leg 12 a heel 13 a part 14 that adapts to the neck of the foot a part 15 that covers the dorsal aspect of the foot a sole 16 for the plantar aspect of the foot and a toe area 17 the sock is made on a circular stocking knitting machine using prior art knitting methods available to persons skilled in the art but with an appropriate selection of the yarns and of the type of knitting with which the various parts of the sock are made in one embodiment the sock according to the present invention is made by using at least one basic yarn made of cotton wool synthetic or the like for the entire sock and one elastic yarn 18 together with the basic yarn at least in the dorsal area 15 and in the area of the neck of the foot 14 and on a part 12 39 of the leg 12 at the level of the ankle see fig1 the parts of the leg and of the.