The paper focuses on leg diseases and the application of preventive compression stockings in people who perform their working tasks in the standing position, pregnant women and recreational athletes. Specific amounts of compression classes from several significant European standards are shown. Structural properties of knitted fabric structure in the production of preventive compression stockings are given. Tubular elastic knitted fabric samples of uniform structure which are used in the production of preventive compression stockings and pantyhose were produced. The yarns used for knitting were PA microfilament yarns in the counts 40 dtex f 40 and 60 dtex f 60 and elastane yarn in the count 22/17 dtex f 7. Tubular elastic knitted fabric samples of the structure intended for preventive compression stockings were made on a single-bed hosiery knitting machine with a gauge of E32 and needle bed diameter of 100 mm (4″) with 400 needles. The samples were made in jersey plated and partially plated structure 1 + 1 at three loop sinking depths. The widths of the tubular knitted fabric samples were 98 to 113 mm. The produced samples were pulled onto rigid cylinders of the circumferences 240 to 790 mm and the compression measured by the Pico Press device was 1 to 24 hPa.