I have many pairs of Northface convertibles. I love them except for one thing. They don't stretch. When I discovered prana convertible pants, I was so relieved. To be able to get into different positions for different shots not have to worry about pants restricting my movement it was almost as though this company had read my mind. I would definitely recommend these to any photographer that will hike or camp and photographs near rock, water, forests or anywhere that has hard to get places.