Smith  4D MAG ChromaPop Snow Goggles with Lens Protector

I like this goggle very much. I’ve been using it with a prescription lens insert from SportRx with an anti-fog coating. Before getting the goggle and insert I couldn’t find much online about using them together, so I thought I would share what I have found using them in combination. One of the best things about the 4D Mag is you get an exceptionally large field of view without the lens growing to an enormous size. And besides the much improved downward “Birds Eye” vision, it’s also worth noting this goggle also has much less visual obstruction around and over the nose. [In the Smith I/O Mag for example, one eye or the other is often blocked by the goggle frame over the nose. In the 4D mag much more of the FOV is fully visible with both eyes.] I don’t have a very strong prescription so I was able to have my insert made using the larger of the two size inserts that SportRx offers for the 4D Mag. The internal name they use for this larger insert is “Sugar Bear”. As you can see from the photo this insert corrects the vision for a remarkably wide field of view including nearly all of the hyped downward direction. And I have found it is really nice having the improved FOV -easier to check pack straps, pockets, and other gear, less tunnel vision, and better situational awareness on the slopes. The goggle has no air vents on the underside where the Birds Eye vision feature is and near the nose where exhaled breath can enter. This is a good feature in my view. And has a larger than typical area of venting along the top. That may make fog-free performance more dependent on using the goggle with a helmet with a brim (like the Smith Vantage or similar) that both shields the top vents from snow and also is designed to pull air out of the top vents. Perhaps using the goggle without such a helmet brim design accounts for a few users reporting fogging issues. Used with a Vantage helmet I haven’t encountered any fogging issues whatsoever for either goggle or insert. Even when snowing heavily while in up-in-the-clouds high humidity conditions, and running hot from exerting and being over-dressed. Pretty remarkable anti-fog performance in my opinion. Though I haven’t had the chance to test the combo yet in the most extreme high humidity, rainy conditions we often get here in Tahoe at the start of a storm. Conditions that only the no longer available TurboFan goggles have been able to keep me fog-free in the past.

I got these as they have the widest field of view, especially downward. They also had the best stereo field of view. This all gets critical in poor visibility conditions, as it's hard to tell where and how fast you are going. The double lens has been keeping my glasses from fogging up, much better than the single lens google I had before. Although these don't specifically say OTG, they fit over my glasses quite well. My temples fit close to my head, though, so check first, if you have glasses. I think these googles are worth the money anywhere, but especially stand out in poor visibility conditions

Awesome product. Exactly what I was looking and hoping for. Easy swap, very comfortable and perfect for all types of lighting.

The comfort and ergonomics are nice, but I wish these came in a wider size like some of Smith's other goggles. These are a little narrow for me, however, the frame is flexible enough that it still creates a decent fit, but occasionally leads to some fogging issues. Really like the magnetic/lever swap, easy to change and remove lenses for cleaning and changing light conditions. When these do fog and get moisture on them I don't like how soft and fragile the lens becomes, I am paranoid every time I need to clean the lens. Great field of view, decent peripheral vision. Love the seamless integration with Smith helmets, including mountain bike helmets.

I really love these goggles in every way and have enjoyed every moment of skiing in it. I could argue it has the best clarity and field of view. However, since I do freeride and skiing is more to me than just looking pretty on the piste, these goggles can't keep up with me in terms of lens durability. I did baby these things from the start but each slip and mistake does scratch the goggle so disappointingly. At this price point, I would expect the lens to be more durable, or at least there should be a recycling program or a repair kit. My suspicion is that mirror coating is to blame here and lenses without mirror are more durable...

If these fit your face great, the 4D Mag are amazing goggles. Ive worn standard fit goggles my whole life. The 4D Mags have this odd cut out on your nose. It leaves the smallest gap up against my nose. When skiing legit powder, I get small amounts of snow up into the goggle. Which needs to be cleared at the end of each run. These goggles ended up being a poor choice for me. When I originally tried these on, I thought they fit fine. Make sure the nose area fits very flush to your nose. Other than this, they are great. Impressive lenses. Really wide area of vision. I like that the strap has a clasp and elastic strips on the inside. Lenses swap fairly easy.

The 4D is extremely user-friendly with a fast lens-change system and delivers standout optics, fog prevention, and comfort. They significantly increases visibility straight down and in the corners (by a claimed 25 percent). It's hard to quantify, but in use, the difference was immediately noticeable. What previously required tilting my head back and down was now fully in view: it was noticeably easier to access my jacket’s chest pocket, adjust the sternum strap buckle on my pack, and verify all my pockets were zipped up.

These were my first lot of expensive goggles and they were definitely worth the price. I work ski patrol and spent all but a few days last season in these. From bright sun to freezing fog these goggles let me see the terrain ahead of me and complete my job in every type of weather a volcanic mountain can throw at me. I especially liked the increased view afforded by these. The peripheral allowed me to see everything around me while navigating patients in a toboggan to trying to find a small piece of gear in my vest.

I'm a 63 years old passionate skier, I've never been able to ski in low light / foggy conditions due to my lack of contrast eye condition until last week when i bought these googles, i skied all week under snowy, low light and foggy conditions as if its was a sunny day vision conditions, had the best ski week of my life thanks to these googles, i bought a second pair as a spare in case i damage mine on a ski trip and cant find a replacement, lens change is a peace of cake, i've never written a review before but had to share my experience this time, well done Smith, you've put Oakley Prizim to shame.

been rocking Smith goggles for longer than I would like to admit, but 30+ years. I really wanted to like these and on non powder days they are great. Problem is for me that the lower part of the lenses fogs on snowy days when snow collects in my facial hair. the downturned lens that makes these "4D" is the issue as I had a couple pairs of just the I/Os for years and never had this issue. this is now my 3rd season with them and they have become my non-storm skiing goggles only. I really wish they were better but poor engineering on these as every time i get any snow in facial hair the curved lens section fogs.