The Thermoskin FXT Compression Socks combine superior support with enhanced comfort for the pain management of Plantar Fasciitis, Heel Spurs and Arch Pain. The FXT Compression Sock is designed to be suitable for everyday wear, meaning you get medical grade support and pain management all day.. Firm upward compression zone targeted at the plantar fascia attachment to unload stress. Firm compression zone targeted at the Achilles tendon for support and comfort. Moderate to firm compression band around foot arch for additional support. Comfort foot pad at ball of foot for extra cushion. Moisture wicking, antibacterial silver microbial fibers in toes and heel for comfort. Sold as a pair.