The Milton Rise is an unbreakable bottle made from 100 percent toxin free. Tritan material that is safe to your body. It comes with an ergonomic lid and is a combination of comfort, safety and style. It is a must have purchase because of its durability and elegant look. These water bottles from Milton are made of a sturdy and durable plastic material which renders them unbreakable. You can carry them on packed public transports without any worry of damage. Each comes with a wide mouth design which can be fully opened to facilitate easy cleaning. The inside of the bottle can be cleaned with a soft brush.