The Adiri™ Natural Nurser™ Ultimate Baby Bottle is soft, safe and simple. With an easy to use and dishwasher safe Fill, Twist and Feed™ system, the only nipple truly shaped like a mother's breast, soft polycarbonate-free and bisphenol-A free materials, and a unique Petal™ vent that helps reduce colic, the Adiri Natural Nurser enables the ultimate safe bottlefeeding experience.