Extra light and ventilated: Dry and soft skin thanks to the large and functional side openings. Ergonomic Shape: Promotes maximum comfort for the baby, thanks to the exclusive design that ensures the correct space for the chin and nose. Supports baby's breathing: PhysioForma is Chicco's exclusive teat that supports the physiological development of the functions of the palate, favors the correct development of the mouth and the baby's breathing. PhysioForma was developed in collaboration with Pediatricians, Orthodontists and the Chicco Observatory. Tested and approved by healthcare professionals. Made of silicone: hygienic and safe.