This is a GREAT sock if you suffer with Plantar Fasciitis. Knit design of the sock pattern hugs the arch of your foot. Nice cozy support for tired feet.
FIRMA's Far Infrared therapeutic Circulation Quarter Crew Socks contain a unique formula of "active bio-crystals" that emit & reflect Far Infrared Rays (FIR).
FIR has unique molecular rejuvenating powers, helping to promote circulation, stimulate the lymphatic system, regulate foot temperature and relieve pain.