The Anon M5 Polarized edition features many of the same high-end design elements as the standard M5—like the flat toric lens shape for wide peripheral vision, the Magna-Tech® magnetic quick-change lens system, and Perceive optics for enhanced contrast and terrain awareness.
What sets the polarized version apart is its polarized Perceive lens, which helps reduce glare (especially from snow and ice surfaces) while retaining the enhanced contrast and clarity that Perceive optics provide. This makes it particularly strong in bright or reflective environments. (As described in the product listing)
It also retains the MFI (Magnetic Face Mask Integration) capability, so a compatible mask can snap into place for a more seamless seal between goggle and face mask to help block wind, snow, and fog.