I have a pack made by Lowe that lasted 18 years of working outdoors, used more days in that time than not. It is mostly 420 denier pack cloth with 1000 denier Cordura bottom. It is now 35 years old and I am taking it to the Wind Rivers next week on a scout backpacking trip. It is large enough to hold a bear canister sideways and is an internal frame (best for off trail for balance). If you are strictly on trail, an external frame pack may be cooler.

A all Cordura pack is a waste of weight, since the bottom 6 inches is where the wear will occur first.