I have the Gonso Montana now carried through the winter while biking with MTB. Although it is not completely waterproof, but holds much more splash and mud, like my other winter pants. A cold wind is not a problem. The processing of pants is very good, also the seat cushion has surprised me very positively. The zippers work very well and do not open on its own.
If necessary, I would order these pants again at any time!
You just have to be careful with the size !!! I am 1.83 meters tall and I fit the pants in XL only !!!