I've written before about my aversion to bottled water, and recommended a few reusable water bottles. And I've noticed the increasing popularity of the Sigg water bottles, which certainly look cooler than the Nalgene bottles that most green folk used to carry around. But I have a new favorite. The Kor One Hydration Vessel has a pretentious name (hydration vessel?), but some really well-thought out features, most notably: It opens easily with one hand, and the hinged lid stays open without falling down on your face. The pour spout is big enough to accept ice cubes, rounded to reduce splashing, and sealed with a silicone ring to prevent leakage. The bottle's elongated shape may be too tall for some, but it does fit nicely in the hand, and holds 750ml. A silicone ring on the bottom helps keep it stand securely, and a clear window on the inside of the lid provides a space for an inspirational message or mantra. All in all, pretty cool for a water bottle. The Kor One is available in four colors, and four thematic designs for $20-23 at amazon.com.