Wearing a properly made compression sock is one of the best ways to reduce swelling, improve circulation, and relieve foot pain. The FS4 Orthotic Sock does all this plus reduces pain resulting from plantar fasciitis, heel spurs, swollen feet, and more. Incorporating our award winning and patented FS6 Compression Foot Sleeve technology, the FS4 Orthotic Socks aid in preventing Plantar Fasciitis symptom onset and act as an overall foot health aid. Our socks are made with seamless, soft moisture-wicking fabric with anti-odor treatment and padding in the right places to create a foot health sock with orthotic benefits. The FS4 is the first patented Plantar Fasciitis sock on the market.