Avent classic newborn flow teats 0m clinically proven to reduce colic and discomfort this classic teat has been trusted by mothers for 30 years and continues to be the preferred choice of many mums designed for an enjoyable and easy feeding experience it is clinically proven to reduce colic and discomfort easy latch on due to the unique valve on the teat clinically proven to significantly reduce fussing unique anti colic system bpa free teat compatible