The Small Globite Anti-DVT compression flight socks are clinically proved to assist in encouraging blood circulation and preventing deep vein thrombosis during long periods of inactivity. With a compression level of 14-17mmhg, these flight socks gently provide graduated pressure on your legs from your ankles up to the bottom of your knees. This pressure assists in getting the blood in your feet and legs moving back towards your heart, and in doing so reduces excess fluid build up. These socks have been registered by the Therapeutic Goods Administration (TGA) as a Class 1 Medical Device - ARTG260845.