Revolutionary no screw thread one-handed closure (Patent Pending). Press-to-Close, Twist-to-Open, PCTO innovation for hassle-free handling and avoiding spillage. Air venting bypasses the milk minimizing formation of air bubbles and oxidation of precious nutrients. Built-in anti-colic air vent reduces unwanted air intake. Elliptical-shaped silicone teat closely mimics a mother's breast to simulate a real latching experience, making combining breast and bottle feeding possible. Off-centre teat enables your baby to feed in a natural upright position. Off-centre teat promotes upright feeding which reduces the risk of milk back-flow that causes mid-ear complications. Growing with your baby, the storage containers can also be used as a snack cup or to store baby food, semi-solids, puree, biscuits, fruits or even juices!