For athletes and non-athletes alike, the OS 1st FS6 Performance Foot Sleeve (Pair) has come to the rescue to target foot pain. This knit sleeve includes a Compression Zone Technology� that provides medical grade orthopedic support for conditions like Plantar Fasciitis, foot swelling, and chronic arch and heel pain. Individuals can wear this sleeve overnight or during the day under socks and inside their shoes for comfortable support and pain relief. Can be worn comfortably under socks during running or recovery. Helps reduce swelling. Helps ease heel and arch pain. Sleeve material is moisture-wicking for enhanced breathability.