Material: the Material of the Lens is Polycarbonate (Environmentally Friendly Engineeplasticspc Material); the Elastic Headband is a Environmentally Friendly Rubber Band; the Cushioning Pad is Taiwan Environmentally Friendly Eva. Features: Anti-Fog, Super Stable, Uv Protection, This Product Has Its Fan, Which Can Keep the Lens Non-Fogging. Goggle Size (Approx.): 22*10Cm (Manual Measurement). Net Weight:200G. Battery Not Included Suitable Head Circumference:52-65Cm. the Elastic Headband Can Be Adjusted to Adapt the User's Head. the Lenses Have Been Treated by Carbonization Treatment, Making the Surface Can Be Reinforced and Strengthened and Not Easy to Be Scratched. (The Scratch Refers to the Abrasion Scratch in Common Using). This Product Has Passed Ansi Z80.3 Landing Test, and at a Temperature of -10 Degrees Celsius~42 Degrees Celsius, the Impact Resistance of It is at Least 420Fps (The Effective Distance is 5 Meters). the Lens Will Not Be Broken When on Ang Impact of 5 Joules. after Testing, When Three Joules and Damping of Energy Applied to the Product, the User Just Feel Slight Squeeze Because of the Absorption and Dispersion of the Sponge Pad Super Stable: Adjustable Elastic Headband, It is Very Comfortable to Wear on the Head. No Matter How Intense the Exercise Is, As Long As You Wear the Right, the Goggle Will Not Loose. There Are Lots of Vent Holes and a Fan on the Goggle, Which Are Good for Air Circulation and Help Exhaust Sweat and Dissipate Heat When Sporting. So the User' s Comfort of Weathis Product is Proved. Perfect for Activities, Outdoor Riding, Daily Leisure, Home Entertainment, Manufacturer: ANSNOW