Philip Avent Airflex 4oz Bottle Twin Pack

Avent Bottles - Clinically proven to reduce colic
Built in one-way air valve in teat flexes to allow air into the bottle to prevent a vacuum. Designed to work with baby's natural feeding action so baby controls milk flow, similar to breastfeeding.

Teat shape
Softer, naturally shaped silicone teat more similar to the breast makes it easier to combine breast and bottle feeding.