Osprey Aether 30

This is a great pack for most hikers. It holds anything that I can think to put in it and is very comfortable.

It is difficult to access a water bottle from the side pockets while wearing the pack, but a 1 liter Platypus works perfectly in them.

My only other complaint is with the weight. Although at 4 and a half pounds, it's still lighter than most other comparable packs, but I'm thinking I would be happier with a Golite Jam 2 (1 1/2 lbs.) or something similar.