Fly Fishing > Fly Fishing Packs
The limitations of a vest are the strengths of a pack. You only have so much fabric to sew on pockets on a vest; a pack takes limited real-estate and makes it work better, condensing storage space into a more efficient layout. Pockets on a vest are spread out and can make things difficult to grab; a pack's consolidation can keep your dominant hand happily retrieving anything you need. Perhaps it's time to make a switch and see just how easy it is to fish with a pack.