You can help ease the transition from bottle back to breast with the Medela Calma® 5 oz. Breastmilk Feeding Set, which mimics your child's natural breastfeeding behaviors. With Calma®, the milk will only flow if your baby works and creates a vacuum to remove the milk. This enables the feeding behavior learned at the breast to be used with Calma®.

• Vented nipple: Helps avoid gassiness as the bottle is vented through our unique air-control system.
• Flow control valve: Allows baby to control milk flow. Milk only flows when baby creates a vacuum.
• Calma® doesn't drip: You can turn Calma® upside down and it still won't drip.Your baby needs to apply a certain level of vacuum in order to get milk out.
• One size/shape nipple: For all stages of Breast Milk feeding. The flow, shape and length of Calma® are designed to suit your baby's needs as your baby grows.
• Made without BPA: All parts that come into contact with Breast Milk are not made with BPA.