The Kids Plus #D sunglasses protect young eyes with polycarbonate lenses and UV protection. These kids sunglasses pair a plastic frame with flexible hinges that bend with a kid's movement. What Our Gearhead(R) Experts Are Saying:"I adjust the temples once to match my kid's face, and the sunglasses stay in place through an afternoon at the park. That keeps me from stopping every few minutes to push them back up."