The Fatigue pant is Saga's more tailored option. Rather then being the baggy fit of most of their gear it has a more tailored slim fit. I was wearing them in a XXL so although more fitted then I would normally wear they were by no means a skinny fit.
For a more tailored pant they still offer a good amount of mobility. Im 5'10 and about 160lbs and although I did need to wear a belt to keep them up I never felt restricted by the fit.
They have a 15K waterproofing rating but only a 10K breathability rating so are certainly more of a park/resort pant. I never had any issues with the waterproofing but they could get a little sweaty when hiking features.
The style was what I really liked about the pants. The more slim fit matched up well with hoddies and they were a great spring time riding pant which could do equally well for a winter pant so long as you don't expect to be off hiking or touring in them.
The build was really good and they felt very durable. Even after a few spills on rails they never showed any signs of wear.
If you are looking for a slim fitting park pant the Fatigue would be a great option.