Anon M4S: Full Breakdown
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The quick verdict: The fastest lens change in skiing plus the deepest lens lineup: nine Perceive tints from 6% to 72% VLT, in your choice of toric or cylindrical. ~$320
Overview
Anon’s M4S is the mid-size version of the M4 platform, and it takes a different path to all-conditions vision than a photochromic lens: make swapping so effortless that you actually do it. Sixteen N52 rare-earth magnets grab the lens and seat it perfectly on the first try, no rails, no tabs, no removing the goggle. The Perceive lens family runs nine tints, and uniquely, the frame accepts both toric and cylindrical lens shapes. The package includes a bonus low-light lens and Anon’s MFI magnetic face mask, which snaps to the frame and closes the gap that lets spindrift up your nose.
Where It Shines
- Lens swaps in seconds, one-handed, with gloves on
- Widest tint range of any lens family here, from glacier-dark to night-clear
- Bonus lens and magnetic face mask add real value to the sticker price
- Mid-size fit suits medium faces that swim in XL frames
Tradeoffs to Know
- Magnets alone hold the lens; a hard crash can dislodge it, which rail-lock systems prevent
- Perceive low-light tints trail the 4D MAG’s ChromaPop storm lens by a hair in the flattest light
- Spare Perceive lenses are pricey, around $100-150 each
Who It’s For
Riders who ski dawn to dusk and want a purpose-built lens for each block of the day rather than one compromise tint. Also the pick if a magnetic face mask sounds better than a frozen neck gaiter, and most who try MFI never go back.
How It Compares
See how it stacks up in our full guide: Ski Goggle Lens Guide 2026-27. Other picks from that list: Smith 4D MAG · Julbo Lightyear · Glade Adapt 2 · Oakley Flight Deck M.