BirdsEye Vision
4D MAG · 4D MAG S · 4D MAG XL
Smith’s largest field of view. The lens extends lower so you see more of the terrain at your feet and the riders in your periphery — Smith rates it a 25% bigger field of view.
Smith 2026 Goggle Buyer’s Guide · Boise
Find Your Perfect Smith Goggle
On the mountain your eyes deal with wind, glare off the snow, and flat light in a storm. Compare the top three Smith MAG goggles — the 4D MAG, I/O MAG and Squad MAG — then match the right lens and helmet to the way you ride. In stock at Ridgeline Bike & Ski in Boise.
Field of View
+25%
BirdsEye · 4D MAG
Lens Swap
MAG
Magnets + locks
Lenses in Box
2
Bright + low light
Flagship
$355
4D MAG MSRP
Smith 4D MAG
Flagship · BirdsEye Vision
$355
See the terrain clearly
Three Lens Shapes, Explained
Smith builds each MAG goggle around a different lens shape. The shape decides how much you see — and what you pay.
Spherical
I/O MAG · I/O MAG S · I/O MAG XL
Curved both side-to-side and top-to-bottom, like flipping from regular to widescreen. More peripheral vision, and Smith’s highest level of anti-fog treatment.
Cylindrical
Squad MAG
Curved side-to-side only. A simpler, classic semi-frameless shape that keeps the price down while keeping the MAG quick-swap system and ChromaPop lenses.
Smith technology
Why Smith Goggles Keep Your Vision Sharp
Every goggle on this page shares the same core tech.
BirdsEye Vision
+25% field of view
Exclusive to the 4D MAG family: a taller lower lens for the widest view Smith makes.
ChromaPop™ Lenses
Boosted color & contrast
ChromaPop enhances contrast and natural color so bumps, ice and changes in the snow surface pop — in Sun, Everyday, Storm and Photochromic tints.
MAG Lens Change
Magnets + locking levers
Magnets guide the lens into place and locking levers hold it there. Swap lenses in seconds when the weather turns — every goggle here comes with two.
AirEvac Anti-Fog
Fog-free all day
AirEvac venting works with Smith helmets to move warm, moist air out, paired with an anti-fog inner lens and moisture-wicking DriWix face foam.
Lens color & VLT guide
Match Your Lens to the Weather
VLT (visible light transmission) is how much light reaches your eyes. Low VLT = darker lens for sunny days; high VLT = lighter lens for storms and flat light.
Sunny / Bluebird
ChromaPop Sun Green Mirror
Brightest days, high-alpine glare
9% VLT
ChromaPop Sun Black
Bright, direct sun
12% VLT
ChromaPop Sun Platinum Mirror
Bright spring conditions
13% VLT
ChromaPop Sun Red Mirror
Sunny with some cloud
16% VLT
Variable / Everyday
ChromaPop Everyday Green Mirror
Medium to bright, versatile
23–25% VLT
ChromaPop Everyday Red Mirror
All-day, all-mountain
23–25% VLT
ChromaPop Everyday Violet Mirror
Mixed light
23% VLT
ChromaPop Everyday Rose Gold Mirror
Mixed light
22–23% VLT
Cloudy / Flat Light
ChromaPop Storm Rose Flash
Storm cycles, flat light
50% VLT
ChromaPop Storm Yellow Flash
Grey days, max contrast
50–65% VLT
Photochromic (adapts)
ChromaPop Photochromic Red Mirror
Changing light through the day
20–45% VLT
ChromaPop Photochromic Rose Flash
Sun to storm in one run
30–50% VLT
Night Skiing
Clear
Night skiing under lights
89% VLT
VLT values from Smith’s published lens charts; ranges shown where sources differ. Lens availability varies by goggle and colorway — ask us what’s in stock.
The lineup
Three Goggles. Three Lens Shapes. One MAG System.
From the flagship BirdsEye 4D MAG to the value Squad MAG — every one packs ChromaPop clarity, the quick-swap MAG system and two lenses in the box.
Flagship · BirdsEye Vision
Smith 4D MAG
In stock: Cactus, Emerald City, Mystic & Chalk Space Invader
from $355
$405 photochromic
- Lens shape
- BirdsEye Vision
- Field of view
- Largest Smith makes (+25%)
- Lens swap
- MAG magnetic + locking levers
- Lenses included
- 2 ChromaPop (bright + low light)
- Anti-fog
- AirEvac + anti-fog inner lens
- Face foam
- DriWix
- Smaller faces
- 4D MAG S
- Larger faces
- 4D MAG XL
- Low nose bridge
- Low Bridge Fit version
Best for
Riders who want the widest possible view and the best look at the terrain right below them on steep, technical lines.
- ✓BirdsEye Vision — Smith’s biggest field of view
- ✓ChromaPop boosts color and contrast
- ✓Quick magnetic lens swap for changing weather
- ✓Two lenses in the box
Spherical · All-Conditions
Smith I/O MAG
In stock (mostly XL): Black, Sprayer, Killer Bee, Ultraviolet & Emerald City
from $295
$335 photochromic
- Lens shape
- Spherical
- Field of view
- Wide (curved side-to-side and top-to-bottom)
- Lens swap
- MAG magnetic + locking levers
- Lenses included
- 2 ChromaPop (bright + low light)
- Anti-fog
- AirEvac + 5X anti-fog inner lens
- Face foam
- DriWix
- Smaller faces
- I/O MAG S
- Larger faces
- I/O MAG XL
- Low nose bridge
- Low Bridge Fit version
Best for
All-mountain riders who want spherical peripheral vision and fast lens swaps without paying for BirdsEye.
- ✓Spherical lens for wide peripheral view
- ✓Smith’s highest level of anti-fog treatment
- ✓MAG magnetic swap system
- ✓Two lenses in the box
Cylindrical · Value
Smith Squad MAG
In stock: Dylan Siggars AC & Serpentine Lined Up
from $265
$305 photochromic
- Lens shape
- Cylindrical
- Field of view
- Standard (curved side-to-side)
- Lens swap
- MAG magnetic + locking levers
- Lenses included
- 2 ChromaPop (bright + low light)
- Anti-fog
- AirEvac + 5X anti-fog inner lens
- Face foam
- 3-layer DriWix
- Smaller faces
- —
- Larger faces
- —
- Low nose bridge
- Low Bridge Fit version
Best for
Riders who want the MAG quick-swap system and ChromaPop clarity at the most accessible price.
- ✓MAG magnetic swap at a value price
- ✓Six magnetic contact points + two locks
- ✓Classic semi-frameless Squad design
- ✓Two lenses in the box
| Specification | Smith 4D MAG from $355 | Smith I/O MAG from $295 | Smith Squad MAG from $265 |
|---|---|---|---|
| Lens shape | BirdsEye Vision | Spherical | Cylindrical |
| Field of view | Largest Smith makes (+25%) | Wide (curved side-to-side and top-to-bottom) | Standard (curved side-to-side) |
| Lens swap | MAG magnetic + locking levers | MAG magnetic + locking levers | MAG magnetic + locking levers |
| Lenses included | 2 ChromaPop (bright + low light) | 2 ChromaPop (bright + low light) | 2 ChromaPop (bright + low light) |
| Anti-fog | AirEvac + anti-fog inner lens | AirEvac + 5X anti-fog inner lens | AirEvac + 5X anti-fog inner lens |
| Face foam | DriWix | DriWix | 3-layer DriWix |
| Smaller faces | 4D MAG S | I/O MAG S | — |
| Larger faces | 4D MAG XL | I/O MAG XL | — |
| Low nose bridge | Low Bridge Fit version | Low Bridge Fit version | Low Bridge Fit version |
Prices are Smith MSRP; photochromic-lens versions cost more. Specs from smithoptics.com.
Smith helmet lineup
Compare the Top Smith Helmets
Every Smith helmet lines its AirEvac vents up with your Smith goggles to fight fog. Choose on three things: safety tech (Mips + Koroyd), climate control (venting) and fit.
| Helmet | Smith Nexus Mips $365 | Smith Vantage 2 Mips $295 | Smith Descend Mips $160 | Smith Code Mips $240 | Smith Method $130 |
|---|---|---|---|---|---|
| Safety tech | Mips + full Koroyd | Mips + full Koroyd | Mips + zonal Koroyd | Mips + zonal Koroyd | Zonal Koroyd (Mips optional) |
| Venting | 24 vents, front & rear adjustable | 40 vents, dual regulators | 16 vents, one-hand adjustable | 6 fixed vents | 8 fixed vents |
| Shell | Hybrid (durable hard exterior) | Three-piece hybrid | In-mold | In-mold | In-mold |
| Fit system | BOA 360 | BOA 360 | Adjustable dial | BOA 360 | Self-adjusting fit |
| Buckle | Fidlock magnetic | Fidlock magnetic | — | Magnetic | Standard |
| Weight (M) | 19 oz / 550 g | 18 oz / 500 g | 16 oz / 400 g | — | — |
Ultra-premium
Smith Nexus Mips
$365
- Safety tech
- Mips + full Koroyd
- Venting
- 24 vents, front & rear adjustable
- Shell
- Hybrid (durable hard exterior)
- Fit system
- BOA 360
- Buckle
- Fidlock magnetic
- Weight (M)
- 19 oz / 550 g
Best for
Hard-charging resort skiers and anyone who wants maximum protection and durability.
Pros
- +Smith’s most advanced helmet: Koroyd throughout
- +Durable hybrid hardshell for season after season
- +Ionic+ odor-fighting liner
Cons
- –Heaviest in the lineup
- –Top of the price range
5 in stock
Technical workhorse
Smith Vantage 2 Mips
$295
$265 without Mips
- Safety tech
- Mips + full Koroyd
- Venting
- 40 vents, dual regulators
- Shell
- Three-piece hybrid
- Fit system
- BOA 360
- Buckle
- Fidlock magnetic
- Weight (M)
- 18 oz / 500 g
Best for
Aggressive all-mountain skiers and riders who see big temperature swings.
Pros
- +Full Koroyd coverage
- +40 vents with separate top and side regulators
- +BOA 360 dial + one-hand Fidlock buckle
Cons
- –Busier look — more dials and sliders
- –Premium price
Limited sizes — ask us
Modern mid-tier
Smith Descend Mips
$160
$130 without Mips
- Safety tech
- Mips + zonal Koroyd
- Venting
- 16 vents, one-hand adjustable
- Shell
- In-mold
- Fit system
- Adjustable dial
- Buckle
- —
- Weight (M)
- 16 oz / 400 g
Best for
All-mountain riders who want climate control without a tech-heavy look.
Pros
- +One-handed vent regulator
- +Low-profile, lightweight shape
- +Audio-compatible ear pads + Ionic+ liner
Cons
- –Zonal (not full) Koroyd
2 in stock
Premium minimalist
Smith Code Mips
$240
- Safety tech
- Mips + zonal Koroyd
- Venting
- 6 fixed vents
- Shell
- In-mold
- Fit system
- BOA 360
- Buckle
- Magnetic
- Weight (M)
- —
Best for
Snowboarders and freeskiers who like the skate look but want a top-tier fit.
Pros
- +BOA 360 dial for a micro-adjustable wrap
- +Warm technical-knit liner (audio compatible)
- +One-hand magnetic chin buckle
Cons
- –Fixed, non-adjustable vents
Special order
Minimalist & skate-inspired
Smith Method
$130
$160 with Mips
- Safety tech
- Zonal Koroyd (Mips optional)
- Venting
- 8 fixed vents
- Shell
- In-mold
- Fit system
- Self-adjusting fit
- Buckle
- Standard
- Weight (M)
- —
Best for
Park riders, freestyle snowboarders and budget-minded minimalists.
Pros
- +Lightweight, low-profile skate-style lid
- +Removable goggle strap lock — wear goggles under the helmet
- +Most affordable Smith helmet
Cons
- –No adjustable venting
- –No dial fit system
Special order
Prices are Smith MSRP. Method and Code aren’t on our shelf right now — ask us to special order one.
Helmet pairings by condition
What Helmet Goes Best With the 4D MAG?
Pair your goggle with a Smith helmet: the brim matches the goggle frame (no “gaper gap”) and the AirEvac channels line up to stop fog. Our picks by condition:
Smith Vantage 2 Mips
Bright & sunny · lens: ChromaPop Sun (Black 12% or Red Mirror 16%)
40 vents with separate top and side regulators let you dump heat on warm spring days while the AirEvac channels keep air moving through your goggles.
Smith Method Pro Mips
Cloudy & flat light · lens: ChromaPop Storm Rose Flash (50%) or Everyday
A clean, low-profile freestyle shape that sits flush with the 4D MAG’s tall frame, with steady fixed venting so a low-light lens stays clear.
Smith Nexus Mips
Dark, night & storm · lens: Clear (89%) or Storm Yellow Flash
Full Koroyd and a durable hybrid shell for maximum coverage, an Ionic+ liner for warmth, and front/rear vents you can close down on cold nights.
4D MAG
Regular adult face
Medium fit
S models
Smaller / narrower face
4D MAG S · I/O MAG S
XL models
Larger face
4D MAG XL · I/O MAG XL
Low Bridge
Lower nose bridge
Low Bridge Fit versions
Get your recommendation
Tell Us Your Conditions — We’ll Recommend a Goggle
Drop your email and the conditions you usually ride, and our Boise team will help you decide if the 4D MAG is worth it — or if another model, lens or helmet fits you better.