OS1st Performance Foot Sleeves are worldwide bestsellers and the number 1 selling braces in the performance market as they are incredibly effective at relieving the pain of plantar fasciitis, chronic arch or heel pain and swelling in the foot. The Compression Zone Technology® provides medical-grade orthopaedic support to the foot structure, while the graduated compression improves circulation and reduces swelling. Use for resting therapy or overnight for morning pain relief.