The North Face Angstrom 28

This model is a favorite among avid hikers. Angstrom integrates a rain cover as part of a reality-based design.  Stretch woven pockets retain bottles and wind shells competently without snagging in heavy brush.  Minimalists take this one overnight in moderate conditions; AJ votes for more conservative use as a premium daypack.  The high-vis Brushfire Orange color keeps you on the radar in foggy conditions.