Effectively help relieve tired aching legs and swollen ankles. Flight Socks are designed to be worn in place of normal socks throughout journeys. Long journeys can cause circulation problems. Passengers often experience tired legs and swollen ankles and feet. When you travel by air, the cramped conditions, reduced air pressure and mild dehydration can all make this worse. A more serious circulation problem is deep vein thrombosis (DVT), this is when a blood clot develops in a deep leg vein. Scholl Flight Socks help to prevent these problems by applying gentle pressure to improve blood flow.