Medicare Flight Socks (Large), Medicare Flight Socks maintain healthy blood flow,provide graduated compression and reduce risk of DVT (Deep Vein Thrombosis) on long journeys , Medically approved aid for the prevention of deep vein thrombosis (DVT) on long haul flights/train/bus/car journeys, Blood circulation is aided through the graduated sock supporting veins from the ankle to the top of the calf, Also help to reduce any build up of excess fluid and give relief to tired feet, Suitable for men and women , Socks can be hand washed at 40ºC and dried flat, Available in size small,medium,large and extra large, Size 9-12/Euro 43-47, An average ankle compression rating of 10mmHg. Pack Size :1,