ANTI-COLIC - Our vented base design releases liquid slowly, reducing colic symptoms in 80%* of babies by eliminating bubbles that cause gas and aggravate colic & reflux BREASTFED BABIES - The elongated nipple shape of our anti colic baby bottles feels just like mom so parents and newborns can easily switch between breastfeeding and bottle feeding EASY CLEAN - No need for a separate bottle sterilizer: MAM bottles self-sterilize in the microwave in 3 minutes, meaning fewer baby items to take on the go