Ergodyne - EGO12431 Made with moisture-wicking technology, 6605 High-Performance Headbands keep workers comfortably cool and dry on hot days. The Hi-Cool performance fabric wicks moisture for quick-drying while the absorbent, terry cloth sweatband prevents sweat from dripping into eyes. Headbands are ideal for construction, landscaping, roofing or any other work in the heat. They are great for recreational activities such as hiking or running. Wear these low-profile cooling headbands alone or under a hard hat. Elastic back stretches to comfortably fit a variety of head sizes. They are machine-washable and should air-dry to preserve material.