In the sun, people usually have to adjust the pupil size to adjust the luminous flux. When the light intensity exceeds the ability of the human eye to adjust, it will cause harm to the human eye.Therefore, outdoor activities, especially in summer, need to use sunshades to block sunlight to reduce fatigue caused by eye adjustment or damage caused by strong light stimulation.Gender : MENFrame Material : AlloyStyle : Pilot，Driver, travel enthusiastLenses Optical Attribute : GradientLenses Optical Attribute : Anti-ReflectiveLenses Optical Attribute : UV400Lenses Material : resinLens Width : 47 mmLens Height : 59 mmUse : Point for Outside, Shopping ,Party ,Travel,T Show,Outdoor DrivingSuitable for Face Shape : Round ,Long , Square , Oval FaceLens Function : 100% UV400 Protection Against Harmful UVA/UVB RaysGlasses structure: frameIntensity: StrongSpecification: AdultLens material: resinAnti-UV grade: UV400Frame material: plastic + metalOrbital Material: MetalStyle: GeneralSunglasses men: outdoor glassesVisible light transmittance: 99%A Letter To Our Dearest Friend:We confidently assure you'll be satified with what you get.❤How customer satisfaction.Your 5-Star Positive Feedback is much appreciated to us, and your satisfaction is our greatest motivation to move forward.Welcome to Shop Here! Want more Items? Please come & visit our SHOP: "Flying High High, new arrivals and suprises coming irregularly, finally you will find what you love ❤ !!!Yours Sincerely,SunshiningNotes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.2.Please contact us by Jumia Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.