Whats the difference between dual and single lens snow gogles and which is best?

Question

Whats the difference between dual and single lens snow gogles and which is best?

Answer 1

dont get single lens. ever. thats tech from the old days

Answer 2

Normally dual lens is anti fog and fogs up less than single lens.

Answer 3

Dual lens goggles are fog resistant, they tend to insulate from wind better too, where as single lens goggles are the same old hum ho goggles you can get for 5 bucks at wal mart