Techkewl, Phase Change Cooling Back Wrap.
Secure comfortably and firmly around your back. Provides cooling relief to aches and pains. Cool Pax™ Phase Change Cooling inserts maintain a comfortable 58°F (14°C). 100% Cotton Carrier. Includes one back wrap and 4 (6668) Cool Pax™ inserts. Size: S/M, L/XL. Blue.