Kneesocks were especially designed for long journeys and staying. medically testet by the University-Clinic Charité Berlin and in daily use tested by 500 Employees of "Deutsche Lufthansa" for a long timeperiod outstanding support values and perfectly matches the contours of your legs. 50 % cotton Vitaladditive Ginko for relaxation and vitalisation to the legs 24 hours support against tired and swollen legs.