Good simple glasses
"My 7 year-old loves them and they fit him well. He has a narrow face, though, so I'm not sure how well they would fit someone his age who has a more round face."

These classic way-shape sunglasses from Foster Grant® are the best of both worlds. The blue soft-to-touch frame makes wearing comfortable for the little ones, all while being effortlessly stylish.What’s more, the smoke-tinted lenses feature 100% UVA-UVB lens protection and a durable coating for exceptional scratch and impact-resistance to safeguard precious young eyes. For ages 3+.
Baker