Hey all.
I'm going to throw my $.02 in here in case anyone with a long torso comes along and reads this thread. If you, like me have a 25" torso, finding the "ultimate" pack of any kind quickly becomes a case study in compromise.
Background: I don't pretend to be as experienced as the other folks in this forum, most of my hiking came in my 6 years in the USMC. I'm not "captain brainwash" or anything.. I have a beard and hug trees and whatnot.. that's just where most of my walking has been done. These days I get to Montana every chance I get, I've done dayhikes in GNP, YNP, and the absaroka-beartooth wilderness, but don't get nearly the trail-time I'd like. I currently have two packs, and neither of them are going to be popular choices among folks who are 'real' hikers, but if you're a big guy like me I might be able to save you some time. Since this is a daypack thread, I'll stick to the smaller of the two.
For everything from a day hike to a weekend backpack I take my $299 eberlestock JP9 (
http://www.eberlestock.com/JP9%20Blue%20Widow.htm )
Cons:
-It's expensive if you're looking for just a day-pack
-It's heavy
-It's... military looking (it helps to have an SLR with a large lense, then people see you and think "wildlife photographer" instead of "scary camoflage person")
Pros:
-It fits your torso. you're big.. you're small.. whatever, it fits.
-It's flexible, look at the link, it's hard to describe, in it's "daypack" configuration it has two large vertical pockets and a topcover pocket and is about 2200 cubic inches.. Those fold out to expose a large central pocket and the pack becomes a 4700 cubic inch overnighter. With add-on's it gets even bigger but I don't have any of those. The way it works.. it makes it very easy to lash on odd pieces of gear (like a spotting scope with tripod attached), again, it's hard to describe, but it's a very clever design that is not a gimmick. It works in real life.
-it's water proof... well, not submersible like an arcteryx or anything, but yeah I don't worry about rain. I might throw the poncho over it in a torrential downpour.
-the suspension system is at least as good as any non-custom molded pack I've ever tried. The "larger" you are, the more you'll like the suspension system in my experience. For example, little folks in my experience like thicker shoulder straps because they help the pack "stick" better to their back. More "omnipresent" people have trouble with thick straps pinching the back of their neck, and restricting their range of motion. The jp9 suspension system puts the pack on your hips and sticks it to your back while staying out of your way at the same time. Big people like it alot, little people can probably find something better. I'm not going to say it's magic or that I walk 20 miles without knowing it's there, but it's pretty great for me.
-It has crazy hydration. Three different places for hydration bladders, I can carry all the water I need for a full backcountry loop in the Chisos Mountains (big bend np) inside the pack.
-It will last forever. The only reason you'll ever need to replace this pack is if it becomes obsolete. Like if someone gifts you a small burro or a sherpa. Seriously, it was a design-goal that it be stuffed full of dead animal parts and drug down 10,000 foot scree slopes.
-scary camouflage people will think you're cool. That might help... if you get lost and wind up in scarycamouflageville you'll have a conversation-starter.