Jan & Jul Urban Xplorer black toddler sunglasses are virtually unbreakable, designed by parents with inquisitive toddlers in mind. TPEE frames are flexible, lightweight, and durable. UV 400 lenses provide 100% UVA & UVB sun protection. Shatter-resistant TAC lenses are polarized for extra protection and glare-reduction. Safe for babies and toddlers, BPA, Phthalate, and PVC free. Stays-on with an adjustable and removable strap.