ZANHeadgear has taken the traditional cotton Flydanna headwrap and created the new SportFlex Flydanna, featuring UPF 50+ protection and soft, stretchable, fabric. Tail ends tie the headwrap securely in place and the center piece protects the neck from the sun. Also works as a moisture barrier for underneath the helmet.50+ UPF-rated protectionSoft touch, 4-way stretch fabricMachine washableOne size fits most. WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov This warning is being provided to comply with the State of California's Proposition 65.