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Anon M4 Toric MFI Ski Goggle Review

Rebecca Yaguda (bio photo)
John Ellings author bio photo
ByMultiple Authors
Sep 19, 2025
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Our Take:
4.6/5

The Anon M4 Toric MFI ($340) may no longer be the flagship in Anon’s lineup, but that’s no knock on its performance. This large-fit goggle delivers standout quality with premium optics, a sturdy and refined frame, and a best-in-class magnetic lens-change system. We’d love the option to skip the MFI face mask—the included gaiter is too floppy and finicky for our liking—but beyond that (oh, and the steep price tag), there’s little to complain about.

Optical Quality

Optical Quality

4.5/5
Field of View

Field of View

4.5/5
Lens-Change System

Lens-Change System

5/5
Comfort

Comfort

4.5/5
Ventilation

Ventilation

4.5/5
Sustainability

Sustainability

3.1/5

Fit

Large

Lens Shape

Toric

Lenses Included

2

Additional Sizes

Medium, low bridge

Pros

Best-in-class magnetic lens-change system is quick and secure.
Durable and high-quality construction; comes with a hard-sided case for the spare lens.
Optics are up there with the best on the market, with a great field of view and wide range of tint and VLT options.
Offered in two lens shapes: a flatter cylindrical option or a rounded toric.

Cons

Polarizing MFI facemask is loose and floppy.
$25 more expensive than the newer M5.

For this season's top models, see our guide to the Best Ski Goggles.

The Anon M4 Toric MFI delivers standout visibility across a range of conditions. I skied with them on days that swung from sunny to overcast with pockets of flat light, and at no point did I feel visually compromised. Each pair includes two lenses: I used the Perceive Sunny Red (14% visible light transmission, or VLT), which excels in full sun and moderate cloud cover. Glare was a non-issue even in bright reflection-heavy conditions, and the mirrored coating helped smooth out harsh contrast. The secondary lens, Perceive Cloudy Burst (59% VLT), is a true low-light specialist—ideal for storm days, dense trees, and even night skiing.


Both lenses are part of Anon’s Perceive collection, which we’ve consistently found to match the optical quality of top-tier ski goggles from Smith and Oakley. Like the M5, the Anon M4 Toric MFI’s views were warm and natural, with excellent contrast and clear terrain definition. We especially appreciated that the lenses didn’t veer into overly pink or artificial hues like some competitors do.

If we were to pick again, I might lean toward a more versatile tint like the Perceive Variable Blue (21% VLT) to minimize lens swaps during variable weather. But for skiers in bright, open conditions—like those often found in the Rockies—this Sunny Red / Cloudy Burst combo covers most bases exceptionally well.

The Anon M4 Toric delivers excellent visibility all around. The large lens offers a wide and immersive field of view, and while the frame is slightly visible when looking straight down—primarily due to the nose bridge—that’s a common limitation and only really noticeable when unzipping a chest pocket or fiddling with ski bib straps. While skiing, the ski goggle fades into the background.


Peripheral vision is especially strong. I had no trouble picking up skiers approaching from either side, and there was never a sense of tunnel vision when pausing on the mountain. At this premium price, it’s fair to note that the Smith 4D Mag offers better straight-down visibility with its curved lens design, but unless that very specific viewing angle is a priority, the M4 holds its own among top-tier options.

This is the feature that launched Anon’s M Series into the spotlight. The M4 Toric MFI uses nine ultra-strong magnets to snap the lens perfectly into place—every time. To remove it, just twist a corner of the lens to break the seal and lift it free. It’s incredibly simple, intuitive, and fast. In fact, lens swaps can be done without removing the goggle from your face—wildly convenient for quick changes between laps.


Some testers at Better Trail have voiced concern about the lack of a secondary latch (which you do get with systems like Smith’s Mag or Oakley’s Switchlock), but through numerous crashes and multiple M Series generations, we’ve never had a lens come loose unexpectedly. No issues with gaps, misalignment, or security—just a clean, reliable design that works exactly as advertised. Apart from the fear of fumbling and dropping a lens off the chairlift, this is the most foolproof swap system we’ve tested.

Straight out of the box, the Anon M4 Toric MFI makes it clear you’re dealing with a high-end design. The triple-layer foam is moderately thick and fully isolates your face from the frame, while the next-to-skin layer is plush and fleece-like, delivering soft, all-day comfort. The plastic frame itself is a rigid, solid piece that doesn’t flex much—but that never led to pressure points or fit complaints from any of our testers.


The goggle has a large fit, so sizing will be the biggest factor in long-term comfort (more on that below), but it’s worth noting that Anon also makes a medium-sized “S” version for those with smaller faces. The only potential concern we have comfort-wise is the stiff frame, which doesn’t mold to the face as easily as more flexible designs. That rigidity likely stems from the magnetic lens system—since a bendy frame might compromise lens security under pressure. In our testing, though, the M4 worked extremely well for medium- and large-faced skiers alike.

The M4 Toric features an excellent venting design. A substantial vent runs along the top of the goggle and is covered with a strip of foam—wider than most goggles we’ve tested—which really helps generate airflow. This could potentially be a drawback for contact lens wearers prone to dry eyes, but overall it created a very effective chimney-like effect, especially when paired with well-vented helmets like the POC Obex MIPS I wore. Across multiple days and light conditions, I experienced zero fogging.


A quality anti-fog coating also helps keep things clear, even if you accidentally overdress or take on an unplanned hike or traverse. The venting continues along the sides of the frame and includes cutouts at the base, creating a full wrap of airflow channels. Simply put, this is one of the most ventilated ski goggles on the market. Outside of Julbo’s SuperFlow Pro line with its popout lens design—like the Launcher, which we recently tested—the Anon M Series sits at the top tier for fog prevention.

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Longevity

Choosing durable outdoor gear and keeping it in use for longer is one of the best ways to reduce environmental impact. Our proprietary longevity rating assesses factors like overall build quality, materials, fabric denier, component durability, and real-world performance. A green check indicates that we expect the product to be long-lasting relative to its peers, a yellow check mark indicates average longevity, and a red X indicates a product that may have a limited lifespan.

MFI Mask
Included with the M4 is Anon’s MFI (Magnetic Face Integration) mask—a neck gaiter that magnetically attaches to the goggle at the nose bridge to fully seal out the elements. The built-in mesh mouth panel helps reduce fogging while offering some breathability, and on frigid days, the integrated setup is certainly appealing. That said, the system feels limiting. Unlike a standard gaiter or balaclava, it’s not easy to adjust on the fly, and wearing it unattached at the nose is noticeably awkward. A bigger concern is the embedded wire at the nose bridge, which helps hold its shape but has sharp ends that sit right against your face. For high-speed skiing, that design choice feels questionable and ultimately detracts from the practicality of the system.


Spare Lens Case
Anon includes a hard-sided spare lens case in addition to the standard microfiber storage bag—a thoughtful and valuable add-on. Given that individual Perceive lenses run around $150, this extra bit of protection is hugely appreciated. Whether you’re traveling, changing lenses at lunch, or just tossing gear in the car, the case goes a long way in preventing accidental scratches or damage.

The Anon M4 Toric is a true large-fit goggle, and Anon also offers the M4S for those who prefer a standard medium fit. Personally, I found the M4 slightly too big—over time, it started to creep down over my nose. Based on that, I’d likely be better off with the M4S. That said, the fit is right in line with expectations: other Better Trail testers who usually wear medium-large or large goggles (such as Oakley’s “L” series) found the M4 to be a great match. It’s not an oversized look, but for skiers with narrower face shapes, it may feel that way.

Anon M5 ($315): The New Kid on the Block
Comparisons to the newer M5 are inevitable, and Anon did make a number of tweaks to the design between generations. The most notable is the M5’s flat toric lens, which is slightly flatter than the M4 Toric here but more rounded than the M4 Cylindrical. The M5 frame is also slightly smaller, and it works well with medium and medium/large faces but may be a bit too compact for large faces (unlike the larger M4). A final notable difference is that the M5 costs $25 less but lacks the hard-sided case for your spare lens, which we find quite useful for keeping it protected. See our Anon M5 review to learn more.

Oakley Line Miner Pro ($317): Classic Fit, Premium Feel
The Line Miner Pro L holds its own in the premium space with excellent Prizm optics, a wide field of view, and a familiar, comfortable fit. Compared to the Anon M4 Toric, the Oakley has a slightly more flexible frame and conforms better to a variety of face shapes out of the box. That said, the Anon wins for ease of use: its all-magnetic lens-swap system is faster and more glove-friendly than Oakley’s semi-locking setup. Both include two lenses, but only the M4 comes with a hard-sided spare lens case and an MFI face mask (with mixed results on comfort). If you value simplicity and speed with lens changes, the M4 is the better tool, but the Line Miner Pro is a great option if you prefer a softer feel and don’t mind a little extra effort when swapping lenses. For more, read our review of the Line Miner Pro.

Anon M4 MFI ($340)
Making bird sign with hands in Anon M4 Toric ski goggles
4.6/5

With the release of the M5, the Anon M4 is no longer the brand’s latest and greatest. But the past-gen model is arguably just as good, with a premium build, fast magnetic lens-change system, and super crisp optics. Plus, the M4 has a slightly larger field of view (and a slightly larger fit) and comes with a hard-sided case for your spare lens.

Fit
Large
Lens Shape
Toric
Lenses Included
2
Additional Sizes
Medium, low bridge
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Optical Quality

4.5/5
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Field of View

4.5/5
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Lens-Change System

5/5
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Comfort

4.5/5
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Ventilation

4.5/5
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Sustainability

3.1/5
Anon M5 MFI ($315)
Anon M5 Ski Goggles side profile
4.6/5

The fifth iteration of Anon’s premier goggle line sticks to the brand’s strengths: super-fast magnetic lens-change system; high-end, durable build; and well-rounded optics. The lack of a hard-sided case and the included floppy mask are both misses, but the M5 is a strong contender at the tippy top of the goggle market.

Fit
Medium/large
Lens Shape
Flat toric
Lenses Included
2
Additional Sizes
Medium, low bridge
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Optical Quality

4.5/5
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Field of View

4/5
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Lens-Change System

5/5
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Comfort

5/5
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Ventilation

4.5/5
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Sustainability

3.1/5
Oakley Line Miner Pro ($317)
Oakley Line Miner Pro ski goggles frame
4.5/5

Leveraging the well-loved Line Miner name and style, the new “Pro” version looks and performs like a true top-end goggle. Its single-layer lens raises some long-term fogging concerns, but the high-quality build and standout optics are hard to fault.

Fit
Large
Lens Shape
Cylindrical
Lenses Included
2
Additional Sizes
Medium
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Optical Quality

4.5/5
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Field of View

4.5/5
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Lens-Change System

4/5
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Comfort

4/5
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Ventilation

4/5
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Sustainability

3.1/5

Is the M4 Toric MFI for You?

If you want top-tier optics and durability, and a lens‑swap system that’s fast, secure, and works even with gloves, the Anon M4 Toric MFI is a strong pick. The lens‑change mechanism in particular is excellent, so if you frequently switch lenses or need something reliable in tough light, this one delivers. That said, the “large” fit is more suited for wide or roomier faces; if yours is narrower, the M4S Toric MFI version may work better. Also, the rigid frame gives less flex, which means fit and seal matter a lot. If those trade‑offs are okay with you, the M4 offers performance aplenty.

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