Amarra 55mm Gradient Square Sunglasses

The look, the size, the color of these glasses was perfect, however what good is all that, if the glass literally falls of the face the minute the head is leaning forward. I am not sure what all the great reviews for these glasses are all about, as that is definitely not my experience. I have had one sunglass (different brand,) that does not stay on the face properly when I have my head is bent over, but still wearable, as it never fell off my face with a slight forward tilt of the face, like this one seems to do. I also have few sunglasses that are just perfect, stayed on my face, and looked great. I would say that I have an averaged sized face, and definitely I don't have what would be considered a small face. However, I am assuming if one has a large/wide face, maybe these glasses might work.