Calma by Medela has a patented air-vent system that allows milk to flow only when baby creates suction. It is suitable for all ages, eliminates the need for flow rate adjustments, and fits with Medela collection and storage bottles. Calma can be cleaned, stored, and transported, and is made without BPA. See more

Made in Switzerland and made without BPA. Clean and store: All components of the Calma Teat fit in the dishwasher (top rack), and once cleaned, they can be stored using the multilid and cap provided. Compatible with Medela Bottles: Collect, store, and feed using Medela bottles, the included multilid prevents any milk from spilling during transportation. One size fits all ages: The milk flow is automatically regulated by the strength of the vacuum applied, eliminating the need to adjust nipple flow rates as your baby grows. Paced feeding: With a patented air-vent system, Calma ensures milk flows only when vacuum is created, allowing your baby to drink, pause, and breathe at its own pace.