Planed design perfected by people that hike.
I was apprehensive as I waited for delivery. I ordered one from another three letter company that will remain nameless. I had a gift card... so sue me. Anyway, I do not always carry a water bottle but when I do I don't want it in my pack. This pack was purchased to keep my climbing gear and light pack stuff in. My old method was a stuff sack w/ cold water bottle inside and it always sweated on my gear. I don't like bladder systems much but this has a cool exterior pocket for that too. I was not sure this had side bottle holders... it does! Yay!!! The hiking pole holders and other inventions are beautiful design and well received. I saw one review where someone was blasting Osprey for the inability to put your cell phone in the little pocket on the shoulder strap. Why do you take a cell phone on a hike? Leave that electric leash at home. Gum fits. Snack bars fit. My E-trex Vista Garmin fits. Just saying. This pack rocks as a mid size and is bigger than you think. I would 3-4 day hike with this easy. Plenty roomy and I am 6'1 and 235