Designed to be 30%60% lighter weight than other cooling vests on the market, the ChillItsLightweight Phase Change Cooling Vest keeps workers cooler, safer and more productive. Its phase change cooling packs maintain a 64 F/18 C temperature for up to two hours when activated. Constructed with a polyester cottonblend fabric, the vests adjustable hook and loop closures around the waist provide a fit for different body types. The heavyduty front zipper makes for easy on/off, while the two front zippered pockets can be used to store cell phones and other small accessories. Features. EXTRA STORAGE Two zippered front pockets. FLEXIBLE FIT Adjustable hook and loop closures on waist for flexible fit. EASY ON/OFF Heavyduty zipper closure on the front of vest. COMFORTABLE Polyester cotton blend construction. WEIGHT WITH PACKS 4lbs / 18kg. QUICK RECHARGE Cooling packs reactive in as little as 5 minutes. LIGHTWEIGHT 30%60% lighter weight than other cooling vests. FLEXIBLE Grid ice pack design eliminates stiffnessSpecifications. Color Black. Size 2XL/3XL. Closure Type Zipper. Material Polyester/Cotton. Gender Unisex. Number of Pockets 2. Country of Origin Indonesia