The Oakley Flak XS Sunglasses have all the same great features as the other pairs in the Flak family but were scaled down to perfectly fit youth faces! Their lightweight and durable O-Matter frames are super comfortable to wear all day long, and they included Unobtanium on the earsocks and nosepads that increase grip with perspiration to keep your glasses in place as you move. They also have a semi-rimless design that extends your lower field of view while adding an extra sporty style. The Prizm lenses provide unprecedented control of light transmission that maximizes contrast and enhances visibility for an overall better viewing experience, and their Plutonite lens material filters 100% of all UVA, UVB, UVC and harmful blue light up to 400nm to protect your eyes from the sun's damaging rays. The perfect gift for your favorite youth baseball player!