The Men's Energy Series BioCeramic Long Sleeve Compression Top- Recovery + Endurance (Au2) was specifically designed for the high endurance athlete. The bioceramic fabric has been engineered to provide a proprietary fabric that is infused with natural compounds that emit far-infrared therapy. Far-infrared compounds include: oxides of zirconium, aluminum, zinc, titanium and antimony. Combined, these elements are known to help improve circulation, repair and regenerate overworked tissues, muscles and nerves, reduce inflammation and decrease pain. This Long Sleeve Bioceramic Compression Top focuses compression of the wrist to the top of the torso, allowing superior range of upper arm motion and also eliminating core restriction.