You've already tried a bottle that promised anti-colic. It didn't work. So you tried another. Same result. The problem isn't you - it's that most bottle brands label a nipple 'slow-flow' and ship it without ever checking whether the hole is actually the right size. Batch to batch, the flow rate varies. Your baby gulps to keep up, swallows air, screams for an hour after every feed, and you're back searching for bottle number four. Every single nipple hole is individually inspected before it leaves the factory - not sampled, not batch-checked, every one. Silicone mimics the breast so the material changes shape under suction the way a nipple does, meaning babies don't need to work harder or differently to feed. Slow-flow that's actually slow - the hole size is validated against the flow rate on the label, so the 0-3m nipple flows like a 0-3m nipple, not a 6m one. Less air per feed because the anti-colic vent draws air away from the milk column so baby drinks milk, not a milk-and-air mix. Age-matched nipple stages so you pick the stage that matches your baby's suck strength right now, not a one-size range that spans six months. If the nipple is defective we replace it, because we inspect every one and we stand behind every one. Most bottle brands rely on you not knowing what to look for. This one assumes you do. What's included 1 x Bottle Nest silicone feeding bottle (150ml or 240ml - see variant selected) Good to know Age range: 0-12+ months (select the variant matched to your baby's age) Capacity: 150ml or 240ml - select at checkout Weight: Approximately 192g (150ml) / 206g (240ml) including packaging Material: Silicone Free shipping: Included on all Parent Nest orders, no minimum required Moneyback promise 30-night trial: if Bottle Nest doesn't reduce gas and unsettled feeding, return it within 30 days Full refund: no questions asked Safe use Always supervise feeding: never leave your baby unattended with a bottle Select the right nipple stage: using the wrong stage can affect flow rate and comfort Not a medical device: if your baby has ongoing feeding difficulties or colic, speak with your paediatrician