Better Than Ice or Gel! Safer Too! As Cooling Pack clear formula is chilled, it "phase changes" into a white semi-solid. It never turns completely solid and it never gets as cold as ice. As formula absorbs heat from torse, where about 90% of the body's heat is produced, it "phase changes" back to its original liquid state. Duration may vary with environment and wearer conditions.
Superb in Searing Heat Wear Directly Against Body No Frostbite or Pain	Energizes in Minutes Lasts for Hours No Pumps, Mechanical Devices or Tethering	Charge in Ice Water or freezer Perfect for Hazmat Suits Ultimate Cooling