| http://www.w3.org/ns/prov#value | - The socks boost the action of the calf muscle Designed by doctors for travellers and commuters, the venous return travel (VRt) socks act like a second skin by squeezing the blood from the surface of the skin to veins deeper in the leg.The knee-high socks, which come in eight colours including white, blue and green, boost the action of the calf muscle, which helps pump blood around the body and bac
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