This lens performs as one should. The colour is suitable for most conditions. I use it over glasses most of the time. When fog or other conditions preclude using the glasses I find this lens works adequately without them, thus, the construction and colour are of a quality to allow me to ski uncorrected. I wish that the goggle design offered wider peripheral view. That is a shortcoming.
The fan attachment is superior to the Smilth version of some years ago. However, in my application, I found that the auto feature did not function and I must manually turn on the fan and leave it running.
Overall excellent value. technically quite good lenses but not, in my experience much differentiated optically from the best of others, the somewhat wider view is what I sought and this goggle system has that.
The price is a noticeable benefit. The customer service is excellent. that is superior to others.
Reviewed by: covell brown from vail, colorado on 3/7/2015