Perfectly fit the white Swiss Shepherd 45 kg. Was afraid that the eyes would be completely along the edges of the mask and the mask would interfere with the view. But no, the eyes are not quite at the edges. I liked the mask. Taught the dog to the mask in 10 minutes. First without a lens, then inserted a transparent lens. I ordered the lenses separately, but they came with the mask in one box and very quickly. To the black lens from the sun, additionally ordered a transparent lens from dust and wind and a mirror lens from the strongly bright sun in the Snowy Mountains.
The only criticism is that the strap is short. If the head were a little larger, it would be necessary to lengthen, but it is generally easy to lengthen, so the main thing is the mask itself suitable.