Gobi Heat Breeze Cooling Vest Unisex with 15 oz Ice Core for Extended ZUZG NEW Water Cycle Refrigeration Cool Vest Wearable Cooling Vest Air Gobi Heat Breeze Unisex Cooling Vest My Cooling Store Gobi Heat Breeze Unisex Cooling Vest My Cooling Store. Breeze, our lightweight, battery powered Unisex Cooling Vest the ultimate summer companion! Stay cool for up to 20 hours on one charge, thanks to its whisper quiet pump system that circulates water. Perfect for outdoor work, hiking, or events, Breeze includes adjustable closures for a perfect fit, one 10,000mAh power bank, and 5 reusable ice core bags for extended cooling. With additional power banks available, you can enjoy extended relief from the heat without having to recharge. What does everything weigh? This is our most common question! The empty vest, including the piping and pump, weighs 1 lb 12 oz. The 6 oz battery pack fits comfortably in the pouch at the back of the vest. We recommend adding one 16 oz frozen ice core (1 lb) and 16 oz of cool water to the reservoir for optimal circulation. How does this work? One Ice pack with a special anti thawing, non toxic gel is added to the vest reservoir which then gets filled with cool water. This creates a fully enclosed system that routes the water flow around the front and back of the vest along the lines (shown in blue on the product image, but not visible on the actual vest). Turning the vest on starts the pump system. As the cooled water comes near your body, it wicks heat away from you and re cools it as it passes the ice pack in the reservoir. The BPA free polyethylene (PE) reservoir assists in maintaining a cooler temperature to optimize the time that the ice pack stays cool. Simply replace the ice packs as needed by keeping them in the freezer, ready to swap. The 10,000 mAh battery is in a self enclosed water resistant pouch to help to protect it. Quick Start Guide Trust Breeze to keep you cool and focused during the hottest days of summer. Need these for your whole crew? Click here to fill out a request.