Chill-Its 6634 Cooling Headband is a low-profile wrap that wicks away sweat and moisture when worn dry and provides evaporative cooling relief when worn wet. Just soak in water until saturated and then wring out excess water for instant activation and cooling that lasts for hours when worn in environments with suitable airflow. Stretchy performance knit fabric and contoured design ensure a snug, comfortable fit on most head sizes. Low-profile design fits comfortably under a hard hat or helmet and is a great option for those with longer hair/ponytails. This skull wrap is rated to UPF 50+ for protection against the sun's harmful UV rays and features an anti-odor treatment for fresh all-day wear. Reflective accent enhances visibility in low-light conditions. Ideal for construction, landscaping, roofing or anyone working in the heat, machine-washable wrap can also be used to reduce the risk of heat stress for outdoor recreational activities.