Original breast-like nipple for “just like mom” feel. Easy latch nipple for smooth transition between breast and bottle. Optimum venting valve with slow flow nipple for less air intake & discomfort, Bottles available in a wide range of ounces, pack sizes, colors & decorations. Always BPA free for your ultimate reassurance. The Closer to Nature 260ml bottles have also been designed for smaller expressed breast milk feeds. Closer to Natures Bottles are compatible with all Closer to Nature nipples, excluding Anti-Colic and Ultra nipples.