Helps to: Fight against fatigue Anti-athletic foot Improve thermo-regulation for the wearer Facilitate fluid exchanges and evacuation of waste from the metabolism Use Pollyanna Ladies Socks to prevent or relieve joint and muscular pains thanks to the reflection of long infrared rays naturally emitted by the body. Pollyanna Ladies Socks also possess an Anti-Bacterial function and is deodorizing, thus reducing unpleasant odours. How it works: Made of new functional materials which emit lot of negative ions and FIR rays, when you wear it, you will feel comfortable as if you were in the hot spring or forest. Pollyanna Ladies Socks is a complete range of FIR (Far Infrared Rays) textile products made from bio-ceramic fiber that uses your body heat for your better well-being. When you wear Pollyanna Ladies Socks, its special ceramic fibers absorb the infrared rays emitted by your body and then radiate them back to it, stimulating the tissue under your skin with a gentle energy, thus creating natural and positive effects.