The rated power of this sun visor is UPF 50 +, which can block more than 95% of the harmful ultraviolet rays of the sun. Fully cover the face, protect the face from bad weather and block harmful ultraviolet rays. Conveniently adjust the angle of the sun visor according to your preferences to block the sun or expand your line of sight. The headband is lined with high-quality soft cotton fabric to absorb moisture and sweat and keep the head cool and comfortable at all times. One size fits best. Perfect for camping, hiking, jogging, horse riding, golf, tennis, fishing or any outdoor activity!