TheOakley Radar EV XS Path Youth Sunglasses is a milestone in the heritage of performance which is now available for youth, with sizing that brings all the breakthroughs of a revolutionary design to young athletes who need the benefits of protection and an extended field of vision in their upward view. Oakley Radar EV XS Path Youth Sunglasses Features Specially-engineered to fit youth faces Unobtainium® earsocks and nosepads increase grip with perspiration for a no slip grip Three-Point Fit holds lenses in precise optical alignment while eliminating pressure points Oakley Radar EV XS Path Youth Sunglasses Technologies HIGH DEFINITION OPTICS: High Definition Optics® (HDO®) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity, and impact resistance. PRIZM: Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.