Calma Feeding Nipple

Vented nipple helps avoid... gassiness as the bottle is vented through a unique air control system. Mimics natural feeding behavior: research has shown that with Calma, your baby is able to maintain the learned feeding behavior exhibited when breastfeeding. Flow control valve: allows baby to control milk flow. Milk only flows when baby creates a vacuum. 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.