When it's full, the Vapur Runway is a pouch-like water bottle with a cool design. When it's not in use, it can simply be rolled up and tucked away in your tote bag. That's right, no bulky empty bottle to cart around. The secret: Vapur bottles are made of three layers of super durable, super thin (and totally reusable) plastic.
To buy: Vapur Runway, $10