Flexible children eyewear means those eyeglass frames that are made from flexible materials like Flexon. These frames are known to offer great flexibility and comfort as well as are safe to use especially for kids.
Flexible children eyewear is designed to offer great flexibility to eyeglasses, especially when they are used for vision correction, and has to worn all the time. The name flexible indicate that these frames can be twisted and bend anyways, which children usually do, and hence are very practical for them.