Go Travel Flights Socks are medically approved compression flight socks in black, designed to reduce the risk of Deep Vein Thrombosis on long-haul flights! The Go Travel Flights Socks Support is proven to improve blood circulation, to help prevent aching legs, swollen feet and ankles and Deep Vein Thrombosis when traveling for long periods of time. They are comfortable to wear and effective in easing the discomfort of tired legs, feet and swollen ankles.