The Milwaukee Cooling Neck Gaiter is designed to be activated by water and features Wet-To-Activate technology to help you KEEP COOL™ on the jobsite. This neck gaiter can be quickly activated by submerging in water for 30 seconds to achieve complete absorption. Wring out any excess water and repeat when dry. For additional cooling time, wet, rinse, and repeat. When activated, the Cooling Neck Gaiter wicks moisture and provides up to 2 hours of cooling. Our Cooling Neck Gaiter delivers lasting comfort with its comfortable, 4-way stretch material. This Cooling Neck Gaiter also provides UPF 50+ protection, blocking 98% of the sun’s UV rays.