Adult Mobile Cooling Hydrologic Cooling Vest 648609-MCUV05240221 Designed for quick water activated cooling, the Mobile Cooling® Hydrologic® vest by Fieldsheer® was originally designed for motorcycle riders to keep them cool under a protective jacket on hot summer rides. Our Hydrologic®'s Super Absorbent Polymer (SAP) interlining absorbs and holds water for lasting cooling and comfort making it a great productivity tool for hot summer jobs or long summer rides. Saturate the cooling vest in water for 1-2 minutes, wring out excess water, and place over your clothing. The cooling vest utilizes evaporative cooling to reduce core temperatures and maintain a safe, comfortable temperature in even the hottest conditions. Made from low profile, lightweight materials, the vest easily stows away when not in use and is ideal for active lifestyles in hot climates. Optional ice packs increase cooling and effective cooling times. Features 85% Nylon 15% Spandex Contrasts Comfortable and stylish V-neck 100% Polyester Lining Front zipper closure Side knit stretches for complete comfort Hydrologic® Quilted Evaporative Cooling Fabric keeps you cool longer, simply wet it and wear it! Optional 3 phase removable Cooling Ice Packs provide even more cooling options Sunsheer® UPF 30 protection keeps you safe from harmful UV rays Phase changing zones include front left and right as well as upper back Odorsheer® technology guards against odor causing microbes improving freshness 100% Polyester quilted woven fabric Sweatsheer® moisture-wicking tech wicks sweat away to keep you cool and dry Adult Mobile Cooling Hydrologic Cooling Vest