anti-colic nipples are made from medical grade silicone. They’re specially designed with a wide latch area and flex and stretch ripples so your baby can bottle feed comfortably at their own natural pace, meaning they ingest less air.# anti-colic nipples are made from medical grade silicone. They’re specially designed with a wide latch area and flex and stretch ripples so your baby can bottle feed comfortably at their own natural pace, meaning they ingest less air.# anti-colic nipples are made from medical grade silicone. They’re specially designed with a wide latch area and flex and stretch ripples so your baby can bottle feed comfortably at their own natural pace, meaning they ingest less air.# anti-colic nipples are made from medical grade silicone. They’re specially designed with a wide latch area and flex and stretch ripples so your baby can bottle feed comfortably at their own natural pace, meaning they ingest less air.# anti-colic nipples are made from medical grade silicone. They’re specially designed with a wide latch area and flex and stretch ripples so your baby can bottle feed comfortably at their own natural pace, meaning they ingest less air.#This specially designed nipple works with our Advanced Anti-Colic bottles to reduce colic symptoms. Less gas, less stress, more sleep.