Ease back and abdominal pain with constant long lasting heat radiates body heat deep into the muscle adjusts for a perfect fit comfortably worn under or over clothing one size fits up to 50 waist shortcode tabdescriptionembedded with ceramic nano particles the deep heat back support retains and reflects your bodys heat radiating it deep into the muscle tissue the effect of this infrared support is long lasting contact heat thats relaxing soothing and enhances circulation which may help