Information about this item5 pairs: meet your needs for the weekGradient compression: the pressure of the sock gradually decreases from the ankle to the knee. This supports the calves and promotes blood circulation, which increases the oxygen supply to the leg muscles and thus prevents cramps and reduces fatigue.Versatile: ideal for sports (such as running, marathon, hiking, cycling, football, rugby, triathlon), people who are on their feet all day (such as nurses, teachers, pharmacists, police officers, warehouse workers), entertainment and flight personnel (reduced risk of DVT and thrombosis on long-haul flights).Size: S/M, L/XL