Abstract: A sock for therapeutic use in arterial insufficiency, cardiac and circulatory decompensation, venous insufficiency, arthrosis and rheumatism. The sock includes a leg portion (12), a foot portion (15, 16) and an ankle-neck of the foot portion (12', 14) between the foot and the leg, where at least some of the said portions of the sock have an elasticized knit structure with an elasticity graduated from part to part.