Maintains constant 64°F / 18°C
Cooling lifecycle lasts up to four hours
Comfortable cotton construction with hook & loop closure
Extended vest surface area to enhance cooling power
Non-toxic, non carcinogenic, dielectric substance
Elastic pen loop
Modacrylic cotton blend FR fabric meets ASTM F1506 performance requirements
APTV Rating: 7.1 cal/cm², CAT1
To activate vest, simply place the two removable packs in a cooler of ice water for 10 minutes; Freezer for 15 minutes; refrigerator for 25 minutes or near an air conditioner for 1-2 hours.