I put them on a duck. The installation is done with two simple laces, resulting in the grips being loose. I had to open holes and pass a lace to tie them together. Especially the left one hangs very easily because there is no lever to support it. As a result, there are openings exposed to the rain.
They are warm and waterproof, but when tested for hours in heavy rain, they took in water from the openings (due to problematic installation) and I had a lot of trouble drying them.
In my opinion, they are not worth it. They are very economical, but the person who buys them will not get the job done and by the time they order others, they will probably suffer.