The unique anti-colic venting system on our Advanced anti-colic bottle draws air away from milk, meaning 80% fewer colic symptoms such as wind, reflux and fussing. Plus, our venting tube comes with a built-in heat sensing strip that gives you extra reassurance that milk is not too hot for a comfortable feed. The anti-colic teat also flexes and stretches like mum’s breast, to ensure a natural latch and feeding experience.