Sometimes you need a little extra support when ankles are stiff, weak or sore from injuries such as Achilles tendonitis and plantar fasciitis. The Ultimate Performance Ultimate Compression Support Sock has strong elastic zones that provide gentle support to assist in the prevention, treatment and rehabilitation of the ankle. Easy to wear all-day, providing long-lasting support and comfort, these cotton rich socks have a high tension knit that offers support for plantar fascia and ankle ligaments, and targeted compression in the ankle, arch and Achilles’ tendon. A flat toe seam is used to reduces irritation and makes them comfortable for wearing with most styles of footwear.