With skin-soft material and a compact spiral shape, the current Philips Avent natural 2.0 teat is anti-colic and more closely resembles the breast. These are bpa-free, much like all Philips Avent stuff (Bisphenol A free). The comfort petals and natural nipple shape allow for a natural latch and make combining breast and bottle feeding easy. Philips Avent natural bottle is compatible. Different flow speeds are available for the most convenient feed.