Super Flexi Flyers with POLARIZED lenses are super flexible! These flexi kids sunglasses are designed to fit 3 - 12 year olds depending on your little one's head size. Super flexible with shatterproof anti-scratch lenses, these are kid-proof sunglasses designed for any adventure. The 100% UV, category 3 polarized lenses combined with the large lens shape makes sure little eyes get all the protection they need. The polarized lenses help to reduce harsh glare and improve the sharpness and clarity of vision.