Soak your BluBandoo cooling neckband in water for only five minutes to keep cool for hours. Dries to the touch within minutes, yet keeps you cool for hours, even days, without refrigeration. For use around the neck or head. Lowers body temperature by cooling the carotid arteries and neck. Reduces risk of heat stroke. Reusable, again and again, by repeating hydrating steps. Great for sports, work, play and leisure. Contains non toxic, high performance five minute hydrating crystals. Made of the finest grade 100% cotton. Finished angled ties and hidden seams. Slender, lightweight and attractive styling. Unisex one size fits most. Hand washable. Reversible. Rotate periodically for best results.