The FlexiFreeze® Ice Vest® is the lightest, thinnest, and most cost effective cooling vest on the market today. The patented Ice Vest® uses FlexiFreeze® Re-Freezable Ice Sheets to harness the cooling power of 96 pure water ice cubes in 3 ½ pounds of efficient cooling capability. We use pure water because pound for pound, water is a more efficient than gel packs. Constructed to be soft, flexible, and lightweight, the Ice Vest® is perfect for every occasion; Industrial Workers in high heat environments, outdoor work around the house, or anyone who is heat sensitive due to medical reasons.