User Review: Arc'teryx Bora 80
Long time ago my Rainier guides had advised me on advantage of a bigger pack (it's much easier to find things in a bigger pack without taking out things in bad weather). After that I bought older model of Bora 80 in 1998.
Now I use it for ALL my hikes (longest 3 days 40lb, shortest day hike 15-20lb). This has been most comfortable packs. I have been tempted several times to try other lighter packs (I also own Deuter 45 which is 3lb lighter but less comfortable)and have gone back to this pack..even as a day pack. You just don't feel the extra weight, its so comfortable.
I have also taken this pack on month long India trip couple of times where it goes on bus top and trains with all my luggage and doesn't have single scratch. It's so tough. And I have used its top lid (fanny pack) for everything from summit attempts, jogging to grocery getting. Its so versatile. Best 400+ $ paid 10 years ago.
Mine is not water proof (it's older model) but I use garbage bag for all my clothing/sleeping bag inside the pack anyway therefore its not an issue for me (have survived 24 hr downpour on Shasta).