Calvin Klein Demo Square Unisex Eyeglasses CK5453 001 54

These are knock-offs. 100%. I will grant that these are pretty good knock-offs but they are knock-offs. I wouldn't have been able to tell except for the fact that I already own a legit pair of these frames. These are plastic, the genuine pairs are metal. I wouldn't describe the quality as great. I could feel how light they were immediately taking them out of the case. Also, the brand name is just slightly different. I like the style of the frames so I decided to keep them. The frames feel fine so far, though I've only tried them on and haven't had the lenses replaced yet. If you don't mind wearing knock-offs, these might be for you.