Sporty, sleek design ski banz fit 4 to 10 year olds with super soft contour foam and extra wide band for comfort Wide vision lenses offer 100% UVA/UVB protection in shatter-resistant polycarbonate Double-vented lens create a thermal barrier while providing great optics and a excellent seal Industrial strength P80 antifog coating on the inside lens help prevent fogging without hindering optics Citrus lens transmit 33% of visible light and are an all around lens suitable for densely overcast, partly cloudy and sunny days