Get very dark- only for super bright sun
Good fit for medium face.
Excellent for places that are extremely sunny such as at very high altitudes covered with snow on a sunny day.
For everything else the glasses just get way too dark too quickly. With the slightest amount of sun the lens already darkens to category 4. For skiing f.e. in Colorado these glasses are already too dark on a sunny day since it turns the colour of the trees to almost black.