Vapur Anti-Bottles are flexible, reusable water bottles that are designed to stand when full, yet they can be rolled, folded or flattened when empty, making them easy to use and carry on any adventure. Unlike bulky, rigid bottles, the portable Anti-Bottles can easily be tucked away into pockets or bags. About 87% lighter than typical rigid bottles, Anti-Bottles only pack water weight. They also use less energy to make and transport than rigid bottles. Durable, freezable, dishwasher safe and BPA-free.