ThermalWear Canine Cooling System The ThermalWear-CCS Dog Vest Let your best friend enjoy the dog days of summer—without becoming overheated! ThermalWear Dog Vests can maintain a constant 50º F for two or more hours, keeping your canine companion comfortably cool during the dog days of summer.   Because Dogs Don’t Sweat It! Unlike humans, dogs can’t sweat to cool off. The Dog Vest absorbs a dog’s excess body heat, allowing the canine to work or play harder and longer in extreme temperatures.   ThermalWear Dog Vests have been used professionally by police K9 units and search and rescue dogs, but they‘re also excellent for your “unemployed” dogs, too! Active Dog? Try Passive Cooling! ThermalWear Dog Vests use a phase-changing liquid that, instead of freezing into ice, turns into a snow-like substance to maintain flexibility. This "freezing" occurs at 50º F, and the semi-solid stays cold much longer than regular ice or gel packs. Similar cooling vests that use ice or freezer gels are potentially dangerous. Dogs that wear these packs too long can become frostbitten or suffer soft tissue damage. With the ThermalWear Dog Vest, you know your dog will receive a constant, cool 50º F. The Dog Vest maintains this cooling temperature for hours, even on hot and sunny days. Active dogs will enjoy the Dog Vest because it helps them play or work longer and harder. Older dogs, particularly dogs with thick or dark colored fur that absorbs sunlight, will enjoy the therapeutic relief the Dog Vest provides them. Fast and Virtually Unlimited Recharging ThermalWear Dog Vests can be fully recharged and ready to use in less than 30 minutes. Simply remove the inserts from the vest and place them in a freezer, ice bath, or other cool place. The liquid-filled inserts will quickly absorb the cold, change to a snow-like substance, then "hold the cold" at a constant temperature for hours of use.   Dog Vests can be recharged and re-used indefinitely, just like water can be converted back and forth from liquid to ice. And this translates directly into long-term savings for you. The ThermalWear Advantage ThermalWear Dog Vests are self-contained, light weight, reliable, and require almost no maintenance.