COMPCOOLER Backpack ICE Water Cooling System with Mesh Cooling Vest 3.0 Bladder Flow Control (Olive, M/L)

The 3.0-liter water/ice bladder, rechargeable battery and miniature pump within the backpack to form a self-contained and portable cooling system. Perfect for those hot jobs where freedom of movement is necessary. Circulates 36°F-68°F (2℃ - 20℃) cooled water to four zones on a tubing-lined liquid cooling vest. Reduce core body temperature and the incidence of thermal stress while increasing comfort, safety, focus and endurance. Allows the user to select three flow rates forcoolant circulation, giving the user more controlover the system performance depending oncurrent workload and ambient temperatures. The 3.0-liter water/ice bladder is easily detached with quick-connect fittings, filled with water and frozen. This serves as the cold energy source, providing 2-4 hours of cooling performance. Additional bladders and batteries can be purchased and used for prolonged cooling periods. This water-based cooling system is both safe to use and environmentally friendly.