Like if batman wore a backpack instead of a belt... - Osprey Zealot 16 Hydration Pack

The pack is a little awkward if you are used to a traditional pack. The method of opening the main pouch is similar to opening a lunch box. Slightly tedious. The flat hydration blader is somewhat uncomfortable. It doesn't contour to your back at all. I opted to use an Antidote blader and felt much more comfortable.
Good fit otherwise. Oh yes the hip pockets are a little awkward also. Difficult to zip/unzip while wearing and especially while in motion. Storage space is a plus. Hidden roll out tool pouch is fun but getting it in and out of its special place can be time consuming. Like when you overpack a duffle bag. Zipper issues.

This review was written in the old system and had content requirements that are different than reviews written today.