Chicco Well-Being Glass feeding bottle is made of premium quality borosilicate glass, a BPA free material, that has been specially designed to provide the baby with a pure, hygienic and comfortable feeding experience. * Made Baby Safe - It is 100% food grade and non-reactive, and ensures that there is no leaching of toxic elements into milk thus keeping the milk composition intact. * Long-lasting & shatter resistant - Chicco glass feeding bottle can withstand high temperature and will not shatter or chip easily, thus making it durable. Furthermore, its non-porous material doesn't absorbs any stains or odour, thus ensuring that its clarity is retained for long. * Proven Anti-colic effect - The Anti-Colic valve situated at the base of the teat (nipple) prevent air ingestion while feeding, thereby reducing the risk of Colic, Gas and discomfort in babies. Thus, it enables smooth, relaxed, and continuous feeding. * Inspired by mother's nipple for a natural latch: The shape of Physio teat (nipple) of has been inspired by the shape of the mother's nipple that adapts perfectly to the mouth of the baby and aids the natural way of sucking. * Soft silicone Nipple - The Physio teat (nipple) is made of 100% soft and hygienic silicone to give the baby a pleasant and natural feeling while sucking. Thus, it helps in easy transitions between breastfeeding and bottle-feeding and vice versa. * Convenient & Practical - The lightweight and ergonomic design of the Chicco Glass Feeding Bottle makes it comfortable to hold for both parents and baby. Also, the wide neck design of the bottle makes it easy to fill and clean, and the drip proof cap prevents any spillage, thus making it an ideal choice for everyday feeding.