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I bought this style of sunglasses because my son is 4 months old and I want to be able to adjust them and keep using them for the next year or two. They came with a nice case that I didn't expect, but makes it easy to throw into my purse or diaper bag and not worry about them getting scratched. He wears them without protest but I have to readjust them often when he is in his stroller because they get twisted on his face. I have found it challenging to find the right tightness of the band so the glasses stay in place but don't dig into his skin. Overall I am happy with this purchase and think I just need to play with them more to get the right fit.