I bought these to wear casually and for mountain biking. They look great and fit well and are light, so they're awesome for casual wear. The fit works with the helmets I have. They don't wrap around, and they are not photochromatic, which is generally better for mountain biking glasses.They're very well made and the lenses are awesome. Zero distortion. They're a tad dark for riding in the wooded New Hampshire trails I usually ride.For some reason the green ones were cheaper than the rest. I love the color actually. They're the non-polarized ones. They were $40 something, but then went back up in price. I liked them so much I got two more pairs when they went back down in price. The "latch" feature is great for removing the glasses and attaching to your shirt, until you put them back on or put in your pack.Another company makes photochromatic lenses (cheap) that pop into these frames. I tried them. They work, but since I wouldn't wear them casually, I put the regular lenses back in and got photpchromatic glasses by Tifosi. They're decent.The Latch sunglasses are easily my favorite ones ever. The fit is great and I love how they look, and I can actually wear them riding when I expect more sun. The ability to clip them to my shirt is nice but I won't use that often. It was surprisingly secure, but you have to be careful to attach them just right. It takes two hands for me and is nothing I would attempt while riding - so I have to stop to latch them.Amazing at $40 something or even $60 something but for $160 plus, I wouldn't get them.I hope this helps.