Just received the two spectacles - a pair of sunglasses and a pair with photochromatic from the same vendor. The frames are well made and sturdy but light. It is winter in Canada and gloomy with out the sun. So I have not been able to test the photochromatic properly and will update later.
sellers is irrespective and don't care about your product and they don't care customer received or not..never going to refund to you..