These are the most comfortable and lightest glasses I've ever owned. In fact, I sometimes forget that I'm wearing them. Most glasses I've owned become uncomfortable after an hour or two, but these never bother me, even when I take them cycling for three or four hours. The lenses are quite nice and do a great job under many types of light conditions. The only minor problem I have with these glasses is the hard case. It doesn't seem very convenient and it's sometimes tricky to get the glasses in and out without getting your fingerprints all over the lenses. Also, my online order invoice indicated that a free cleaning kit came with the glasses, but I received no such kit. All in all, super comfortable glasses, great optics, but the case is a little cumbersome for me and I was disappointed to receive no cleaning kit for a $250 pair of shades.