Get ready for the sunshine with these beautifully designed Koolsun sunglasses. The AIR style is a timeless pair of aviator sunglasses. They look great, and will last years as they are both durable and flexible.  The unbreakable polycarbonate lenses are optical class 1 and cat. 3 and protect your child's eyes from harmful UV-A and UV-B sun rays. You can store it in its KOOL accompanying microfiber imprinted pouch, when not in use. 1+ is for 1-5 years 3+ is for 3-10 years Generously sized so size down if in doubt