Cooling and Heating Patch - 2 (IMAGE) University of California - San Diego Caption Armband embedded with flexible battery pack (left), stretchable circuit (center), and cooling/heating patch (right). Credit David Baillot/UC San Diego Jacobs School of Engineering Usage Restrictions Please credit: David Baillot/UC San Diego Jacobs School of Engineering License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.