The Sigvaris 500 Natural Rubber Series, knee high stockings, supply a medical strength compression to help treat severe vein conditions, such as advanced vein varicosities, severe and lymphatic edema, active venous ulcerations, manifestations of PTS, CVI, and the prevention of post-thrombotic syndrome, orthostatic hypotension, post surgical and post sclerotherapy. These knee high compression stockings take on the appearance of nylon stockings, but the rubber and nylon material offer durability, support, and elasticity. Choose between long and short options in combination with small, medium, large, and extra large sizing options to facilitate a compression stocking that has a precision fit.