Chicco Well-Being Silicone Bottle features an anticholic valve that prevents air intake, reducing the risk of colic, hiccups and regurgitation. Contains a wide base, specific to the baby's mouth and small lips, making it easy to suck. The embossed rings at the base simulate the maternal breast. The soft and flexible teat facilitates the transition from breast to bottle and vice versa. The silicone teat gives a comfortable feeling during suction. Without BPA.