With the most breast-like teats ever made, this bottle flexes like mum and feels like mum because babies prefer it that way. In fact, our Closer to Nature bottle has guaranteed acceptance and an anti-colic valve making it the best thing for baby since you making feeding easier for everyone. Features: - Breast-like shape for a natural latch – acceptance guaranteed*. - Anti-colic valve in teat to reduce air ingestion. - Smooth silicone teat feels closer to skin. - The most breast like feeding bottle with anti-colic valve. - Easy latch-on nipple - 97% mum recommended**. - Closer to Natures Bottles are compatible with all Closer to Nature teats, excluding Advanced Anti-Colic and Ultra nipples. - Bottles available in a wide range of ounces, pack sizes, colors & decorations. *92% of more than 1200 parents who used our teat with their child recalled that they accepted it within the first 3 attempts. **In a 2012 on-line survey of more than 500 mums who used Closer to Nature bottles, 97% agreed.