FEATURES: Reduces danger of heat stress Ultra-thin flexible design Cooling lasts up to 1 - 2 hours Conveniently stores in refrigerator or freezer Non-hazardous water-based ingredients Comfortable adjustable straps Easy clean nylon shell Weight: 3 lbs. Fits sizes XS - 3XL INSTRUCTIONS: Activate in fridge or freezer for 1 - 2 hours Adjust shoulder straps Trip excess strap length (optional) Enjoy cooling