The FS6 Performance Foot Sleeve has sold millions of units world-wide and is the #1 selling light brace in the running market. It is incredibly effective at relieving the pain of Plantar Fasciitis, chronic arch and heel pain, and swelling in the foot. Compression Zone Technology knit into this amazing foot sleeve provides medical grade orthopedic support to the foot structure and the Achilles tendon. Graduated compression improves circulation and reduces swelling, all in an ultracomfortable moisture-wicking foot sleeve that can be worn under socks and inside shoes. FS6 can be used for resting therapy or over night and gives morning pain relief from the first day.