The UV Buff® is made from Coolmax® Extreme fabric to block 95% of UV rays and wick sweat quickly away from your skin with its four-channel fiber. Ultimately designed to keep you comfortable and protected hour after hour on long, sun-filled adventures. Blocks 95% of UV raysSoft, breathable Coolmax® Extreme fabric100% seamless12+ ways to wearPolygiene active odor controlMoisture wickingThermal Protection from cold & windQuick-drying2-way lateral stretchOne-size-fits-all adults