This is my 3rd pair of Smith sunglasses. I had 2 previous pairs of Smith Sliders, one pair I got in the late 90s, and another pair I got in the early aughts. Both were great! I used them for mtn biking and road biking, and they fit well, protected my eyes, and had the different colored lenses for different lighting conditions. These are great too, tho I do miss the 3rd set of clear lenses for riding in the woods during summer. Great glasses overall!I would be so sad without these!! I’ve been running in them for years!! I love the multiple lens options!! On grey days, I wear clear lenses to keep the bugs out of my eyes!!I've ordered these in Crystal Mediterranean (blue frames) twice, only to be sent shiny black frames twice. I'm giving it one more try. (If I wanted black I would've ordered black, right?)The glasses themselves are great: fit well on my face and fit well with my Smith MTB helmet. I like the style: they're sized just right for my needs.I wear these commuting everyday and they are comfortable and snug. The frames are high quality and seems rugged enough for some mishandling at times. The one minor flaw is that the lens pop out frequently. Of course, they are made to be interchangeable, but sometimes just putting them on your head with a single hand (the other is needed for driving) and pop goes the lens. It wouldn't stop me from buying them again, but it can be annoying when driving down the road at 65 mph.These are wonderful sunglasses: light weight frame that fits securely; lenses that handle glare well but are clear; and switching lenses actually works!The lenses easily fit in and out without scratching. I am so satisfied.Twenty years ago the swapping lenses would scratch very easily. I couldn't get them swapped without the scratching.Great value and practical i use it every whereOutstanding product, price was excellent.Look great. Good fit. Lightweight. Great price!My favorite sunglasses ever! I had a pair for several years and hubby borrowed and lost them. They increase vision, have exceptional comfort and coverage all day long and are lightweight! Best part is I have all my spare lenses from the other pair and they fit. This came with another lens set as well.The lenses do not distort colours and the glasses sits nicely on my face.The frame is very light weight and you almost forgot you have them on.But feels abit flimsy and the lenses comes off easily if you're less than gentle....They fit like a glove, and the lenses are beautiful, but the frames are a dull grey or black, rather than the teal "Crystal Mediterranean" that I ordered. Probably not worth the hassle of replacing them just for that, though.