The 2021 Buff CoolNet UV Multifunctional Headband is half the length of the Coolnet Multifunctional Headwear and offers style and sun protection without weighing you down. The CoolNet UV Multifunctional Headband is 95% recycled - engineered with REPREVE performance microfiber, HeiQ cooling technology, Polygiene odor control and has a 4-Way, seamless, ULTRA STRETCH fabric construction and block UV rays on covered areas to make outdoor sports more enjoyable.