The Newest Technology in Compression Socks has Arrived -- Sankom Patented Active Compression Stockings are different than most compression stockings in the way they give support to your legs. The layers of the targeted weaves are designed to increase circulation in a superior way than standard passive compression stockings by using our innovative step-by-step method designed in the weaves as shown in the video. So, the blood flows are gently moved up the legs in an " active compression manner" which is what is patented in our Sankom line of stockings.