Dot Approved And Meets Fmvss 218 Standard, Flow-Thru Intake/Exhaust Venting Forehead Vents And Rear Exhaust Vents Help Pull In Desired Fresh Air & Remove Unwanted Hot Air Through Channeled Vents, One Shell Can Be Adjusted To Three Different Sizes So The Helmet Can Grow As Your Child Grows. Large Eyeport For Improved Range Of Vision. 100% Uv400 Protection From The Face Shield That Comes Anti-Scratch Hard Coated For A Longer Lasting Clear View, Light Weight- Only 3.1 Lbs