Kids Polarized Sunglasses 5Y+ Easton | SageThe everyday sun essential. The Leosun range of polarized kids unisex sunglasses constructed from the innovative eco friendly G850 renew which is made from 45% caster seeds. Designed to fit kids between the ages of 5 12 years, depending on your little one's head size. See size guide for measurements. Models pictured are 5 and 9 years old. Leosun lenses are polarized, offering max UV400 protection so that children can enjoy hours of outdoor adventures.