Why should low-light goggles not be polarized?

Polarization eliminates glare by filtering reflected light, but in flat light conditions, those subtle reflections and glare differences between snow surfaces are actually helpful visual cues. They help you distinguish between soft snow, ice, crust, and hardpack. Removing those cues with polarization can make flat light even flatter and harder to read. Additionally, polarization can make it harder to see icy patches—which is exactly what you want to avoid in storm skiing.