Lenses = Amazing, Frames = handle with care
923551
I really love these glasses. The polarized lenses have brought me back multiple times. The frames however are why these glasses don't get 5 stars.

Though the frames are very comfortable, if you apply almost ANY pressure to them in any sort of fashion, besides just putting them on your face, the arms will break. I have now broken 2 pairs in very simple ways, with minimal pressure. If this third set breaks, I will not be coming back. I think the lightweight nature is a double edged sword.

Still, if you are an extra careful individual, they are really worth the purchase.
4833301
I bought them specifically for riding my road bicycle. The build quality is very good, and the lens is wide (it actually does wrap around your face) and tall, so the entire field of view is covered. And they look awesome, especially with a helmet on. I did not notice any optical distortions. In fact, when biking for the first time with glasses on, I forgot I was wearing them - so comfortable they are, and so good the coverage of the view field. I rode with these glasses at 45 mph, and there was no lifting of the glasses by the wind, or penetrating of the wind under the glasses. The lens is not too far away from the face, and is not to close so eyelashes don't come into contact with the lens.
Unfortunately, the glasses came in a bare white carton, without even being put in a plastic bag inside the carton for protection. It looks like the seller does not care whether the glasses get scratched during the delivery. Very strange. No case and no cloth either. Just a carton and naked glasses. Not even a piece of paper. Despite this I am giving them 5 stars because the quality and the fit are so good.
Don't fall for "high-value" glasses that come with 2-5 extra interchangeable lenses and accessories. If you are a serious biker, then this is what you want, and only at $23!. I would love to have the same model but with clear lenses.
1690250
I ordered 2 pairs of Ray Ban sunglasses at the same time.  Both pairs were shipped together in a large box with plenty of protection.  The package arrived on time (I have AMZ Prime) and the items were both in perfect condition.

This pair of sunglasses has an all-around frame and seems quite sturdy.  The lenses are quite large (almost aviator style) but it's a very good looking pair of glasses.

These will replace a pair of RB3179 I have owned for 4 years and which have a partial frame.  The RB3179 had issues (at least with me) in terms of the frame since the lenses attached to the frame via 2 screws at each corner of the lens.  This approach ended up cracking both lenses.  I replaced the glasses a couple of times and finally gave up, choosing to wear the glasses with the cracked lenses.  I still wear them after 4 years so it's more of an appearance issue and the frustration of paying top $ for glasses that are poorly designed.  As I said earlier, these last comments apply to RB3179 and NOT RB3379 (reviewed here).  I love my RB and I hope that with the full frame (and no screws going through the lenses) this model will give me years of happy use.
3417495
These are fantastic! Got them a couple weeks ago, and no lie, every single time I wear them, I get crazy compliments. The lenses are definitely huge, so if you're petite they might not work - my cousin tried them on and they looked overwhelming.  The mirror coating does show fingerprints, like any mirror coating, so don't touch the lenses. I'm trying to remember to keep them in the bag they came in, but I should get a hard case - I'm a lttle worried the lenses will scratch. For the price, though, I'm considering getting a second pair. I really love them, and they're so pretty!
1337715
Serengeti has the best lenses in the business. I have found frame designs by other high end brands that I would prefer but I always come back to Serengeti for the quality of their lenses and overall frame quality. This is at least my fifth pair and have never had a problem other than occasionally losing them.
577398
The lenses are well made, no distortion.  The bi-focal is placed well also.  The frames are sturdy as well as nice looking.  I'm very happy with this style and brand.  Great buy for the money.  I will buy another pair, maybe step out of the box a bit get the red!
783565
best lenses i have ever purchased and for a fair price.
2941097
I love these sunglasses. The first pair of "good" sunglasses I ever bought were a pair of Ray-Ban Wayfarers. I loved them then, and I love them now. They had to wear out, because the glass lenses are virtually indestructible. On any plastic lenses I've had, including some that cost twice as much as my RB2140s, the lenses get scratched, no matter how careful I try to be. These babies are built to last. They feel solid in every respect. They are comfortable, and the optics are absolutely the best available. I got these here on Amazon for an amazing price - cheaper than I can get them at the PX or AAFES online store. Couldn't be happier with the price, service, or product.
833460
I just received my glasses and they are even better than my expectations.
The frames are beautiful and I love the great eye protection.
The world takes on a whole new look through these beautiful and style wise glasses.
Not to mention the wonderful price for two pairs.
Now I have one pair for my purse and one for working outside so that I always have them handy.
3111726
Lenses are VERY nice, frames are kinda cheap but expected. Metal portion on frames are solid af. Comes with a good case and tool for tightening.
Lenses are a bit bigger than normal wayfarer so be warned
1543400
OVERSIZED is an understatement. They'd be amazing if just a bit smaller. The frame itself and lenses are great. I still wear them.
1085073
Other reviews say the lens don't fit right, however I had a very easy time getting them into the frames. In fact, if are at all having problems simply heat the frame briefly with a hair dryer and it makes the frames pliable. The lens themselves however have minor (albeit annoying) defect, there is a fuzzy/blurry spot right in the middle. This is not a smudge or dirt, it is in the lens itself. The spot exists on both sides and is small, but definitely noticeable.
3411433
Really cool lenses. You will love them if your truly into photography.
3730552
I am very impressed with these lenses. It was no problem popping the original lenses out of the frames, but I had some trouble installing the new lenses. Of course, I'm a guy and we try stuff before we read the directions or go online to see a video (which was what I did). In all fairness, the instructions direct you to the website to see how the lenses are installed. Once I did that I got them in the frames with very few fingerprints and nothing was broken. I highly recommend the polarized lenses; the glare reduction is amazing.
424798
I loved the sunglasses! I was afraid the model could be too big and not fit in my face, but they fit pretty well and the lens are awesome. I take care of them with my life because I can see they are very fragile, but this is gonna happen with any wood glasses, so it is matter of be careful with them. I recommend!
4916618
I noticed in the product description that there is a note that the frames have been upgraded with stronger material; I don't know if this is before or after I purchased my glasses in September of 2016.

But I travel internationally and needed a strong pair of sunglasses that would not break and could protect my eyes from extreme sunlight.

The GOOD: the lenses were great at protecting my eyes and reduced extremely bright sunlight to a comfortable level.  They didn't come into contact with any water, aside from sweat, so I can't speak about their durability.  And I really LOVE the fit.  They are light, comfortable, and fit well around my face.  I am a tall man with a more narrow face, and these fit wonderfully!

The BAD: the lenses broke only a few months after I get them; while I was on break, a 7 year old gently lobbed a basketball and hit my glasses that were hanging from my shirt at the time, and it snapped the top frame!  This was not a very hard hit at all, and I bought these "unbreakable" frames with much more abuse in mind!  Since I bought these to last me during my long trips abroad, this is a deal-breaker for me.

I don't know if their update to the frame will fix this problem, but despite the positives of these sunglasses, durability is just too important to me to risk buying from Duduma again because it's a serious problem for me if they break while I'm abroad, as these have done.
1307331
It scratches way too easy for me, and I was dune bashing with these and a gust of sand blew in my face and created small pit marks on the lens - which is a shame. Protect these against this sort of exposure - and it will serve you well. Its a lovely lens that protects your eyes wonderfully and the polarization quality is head and shoulders above most - a trademark of Maui Jim's.

The frame is light, and easy to wear all day with no ill effects at all, Will be too big for narrow or medium face structures - see if you can size it first. But this is my 4th Maui Jim and it won't be the last last - keep up the great work guys, what a great product. See if you build some sort sort of scratch durability into the lens without losing its quality - THAT would be perfect