Younger Swimmers require quality equal to that of the adult, only in a smaller scale. Head Swimming uses the same High Quality Polycarbonate Lenses used in the Adult Goggles with Anti-Fog Polymer Treatment and 100% Ultra Violet (UV) Protection from the sun’s harmful rays. Smaller dimension mask designed for the younger consumer, excellent comfort provided by the Soft TPR Material, Unbreakable Polycarbonate Lenses are curved for excellent 180-Degree Vision characteristics in competition. Goggles have User-Friendly HEAD Rapid Adjustment System, which is extremely important for the secure fit of the younger user.