Performace A+, Durability C-
Got these pants primarily for backpacking in the PNW and some light summer skiing.
They are very comfortable, pack very small, and are average weight.
The waterproofing is 100%.
BUT, both zippers tore away from the fabric at the ankle. Even though Arc-teryx hooked up some different pants on warrantee, I was bummed because I liked these so much.
Bottom line: excellent pants, not durable enough for skiing.