Those are very comfortable and I love their roomy pockets. You can even put there a softflask and it's not bouncing at all when running. But designed in so smart way that when you have empty pockets, you can not even feel they are there.
I'm not a clothes destroyer type of orienteer, but I have run few times in blueberries and didn't get any tears, so I can say their durable.
Would definitely recommend.