Hydration Pack Reviews- The Best Packs

Camelbak is the leader in the field for hydration packs, water bottles and systems. They are high quality and a variety of models for just about any sport you can think of.
Blackhawk makes military grade gear including a line of packs designed for water bladders.
Platypus makes a couple of different water bladders or pouches that you match up with your own backpack. They are make an innovative gravity fed water filtration system for backpackers.
The Coleman brand hydration packs are cheap and no frills.

Hydration Pack Reviews