Prevents colic, regurgitation and irritability. The Well-Being Bottle guarantees maximum practicality thanks to its ergonomic format, it is suitable for sterilization and for going in the dishwasher. Thanks to the special Physio teat in soft silicone with a Soft Sense finish, the Chicco Well-Being bottle guarantees natural and pleasant feeding. Fast Flow is the ideal choice for growing babies. Easy to use. Maximum hygiene and protection thanks to the anti-leak cap. Simple cleaning thanks to the wide opening. Physio Teat:Approved by 9 out of 10 BabiesSymmetrical and elongated to simulate the mother's breast remodeled by baby sucking and to ensure the NATURAL MOVEMENT of the mouth/tongue during sucking.Anti-colic valve at the base of the teat prevents the teat from collapsing and the entry of air – reduction of COLIC and REGURGITATION.Soft and flexible, in SOFT SENSE silicone for a NATURAL and PLEASANT FEELING for the baby. Perfect Fit: The teat adapts perfectly to the baby's mouth and respects the natural sucking movement.