SafeWater Anywhere's bottles were so innovative and useful that in 1998 they won a Field & Stream Best of the Best Award. Since then SafeWater has expanded and improved the line. The bottles have been redesigned, and the improved filter will now fit onto any standard-size Nalgene bottles, too. SafeWater is also offering their built-in filters on a variety of hydration bladders. All of their products now feature HealthShield, an antimicrobial agent that is compounded into the plastic to prevent mold, mildew, fungus, bacteria, and other funk from growing inside your bottle. Expedition G2 filter bottle, $45.