If you're heading out for a hike, the Adventure 25 ounce vacuum bottle will hold more than enough cold water or juice to get you through your journey. It offers the same thermal protection as Stanley's larger vacuum bottles, keeping liquids cold for up to 120 hours. If you prefer to take along coffee or tea, you can count on it staying hot for 24 hours. And since it's made of stainless steel, it goes without saying that you don't have to worry about BPAs. It's also guaranteed to be leak-proof. To clean, just hand-wash or put it in the dishwasher.