Munchkin Latch Bottle – 3pk is achieved when mom’s nipple reaches all the way back to baby’s soft palate. The accordion-style nipple on the bottle stretches like the breast, helping baby drink easily and correctly. When breastfeeding, baby controls the flow of milk by applying pressure to the base of mom’s nipple. The bottle mimics mom by releasing more breast milk as baby pushes against the nipple’s base. While feeding, the accordion-style nipple flexes as baby moves their head, enabling baby to maintain smooth drinking process, thus decreasing ingestion of air. The anti-colic valve located at the bottom of the bottle allows for breast milk to flow while ensuring air bubbles do not travel through the breast milk. Experts agree that the best transition occurs when bottle flow and mother’s flow match. The Stage 1 nipple’s flow has been reduced to mimic the flow of the breast. Stage 2 and 3 are also available, allowing you to increase the flow as your baby grows.