These pants are really nice and well made, but run a little small. The stretch canvas seems durable, and my non-lined Bronson pants are holding up great. I love the flannel lining super soft. As much as I liked these pants they run small for prana. I currently have 5 prana pants and two cargo shorts. I am a 30 or small in every pair. These are the only pair that the 30 was too small. I sent them back and moosejaw handled my return wonderfully. Getting a new pair in 32, seems like they will be great for cold weather bouldering.