Best pair of sunglasses I have ever owned. Very comfortable and functional. Very sturdy as well even with the slim arms. Bought my first pair when I was 18 and had them for roughly 6-7 years with no issues and every day use, used boating, riding and playing sports. I am on my second pair now and would love a 3rd pair if ever needed. My first pair was all black and now I have the crystal green, both were great looking sunglasses. The only thing that's too bad is the limited color selection for them now. I would love another black pair.