I'm super impressed with these pants. They fit really well but they're still super flexible. I've used them both indoors and outside, and have no concerns about their durability. What I especially enjoyed while climbing outdoors is that they're made of a smooth surface, which doesn't really get caught on anything, but it's also quite breathable and strong.
I wore them while ascending the inside of a cave, which involved a lot of leaning my butt against coarse walls while stretching the pants out, but they didn't even get a scratch on them
I'm sure different surfaces could wear them out differently, but I'm very pleased and impressed so far. I especially love the geared belt, which is easy to adjust.
I first had these bought for me as a gift but then was devastated when I lost them. I missed these pants so much that I bought them again and have no regrets about my decision!
Personally, I'd highly recommend these if they're the type of climbing shorts you're looking for!