Vapor bottles are reusable, foldable, attachable, freezable, sustainable convenience, all in one easy to grip, streamline bottle. It�s a flexible product made specifically with active lifestyles in mind. The Anti-Bottle defies all the laws of what a water bottle �should be�. Unlike traditional rigid bottles, it lays flat when empty, and has the ability to be folded and stored where other bottles cannot. It�s also BPA free, and super easy to wash. There is no water bottle like it. Let�s just say we�re rule breakers, but in the best kind of way.