Julbo: Kid's Peekaboo Sunglasses (w/ Alti Spectron X6 Lenses) - Keep your kids' baby blues, browns and greens safe from UV rays and bright light with Julbo's Peekaboo Sunglasses. Sized to fit kids ages 6 to 10, these Peekaboo Sunglasses feature Alti Spectron X6 lenses, the darkest tint created for Julbo eyewear. Julbo's Kid's Peekaboo Sunglasses might cost more than those cheap discount sunglasses down on the crowded rack at the drugstore, but there's a big difference beyond the price tag. Up to the age of 13, most eyes absorb up to 60% of UVA and 25% of UVB light--that's painful and potentially harmful.