Operating Theory: Each system works with a tube garment, using ice and water as a coolant. Water is circulated from the bladder through the tube vest by the mini pump. The water is continuously cooled as it passes through the bladder.

Working Condition: Ice bottles must be kept frozen. Ice cubes can be substituted.

Features: Backpack and garments are flexible and comfortable to wear. The temperature is set up between 66-77° F.

Applications: Military and Emergency Response personnel, Athletes, any person working in extremely high temperatures.