The best sunglasses for kids should offer 100% UV protection. That is to say, these sunglassses should filter out all the UV rays to give kids' eyes full protection. However, sunglasses that can filter out 99 to 100 percent of both UVA and UVB radiation can also be good for kids. The more UV rays sunglasses filter out, the safer they are. So kids' sunglasses should at least filter out 99 percent UV rays.
Sunglasses for kids should offer 100% UV protection so that they can protect the eyes completely. What's more, kids' sunglasses should be impact resistant so that they can't hurt kids' eyes. In addition, children should wear large-brimmed hats when they are exposed to the sun for a long period of time, which can give their eyes more protection.