Closer to Nature Bottles, switching between breast and bottle feeding becomes easier than ever before. We've designed the unique, easy-latch-on teat shape with breastfeeding experts to mimic the natural flex, stretch and movement of a mum's breast. Together with the bottle's super-sensitive valve, this encourages your baby's intuitive feeding action for comfortable, relaxed feeding. Key Features : Unique, easy-latch-on teat shape Super-sensitive valve Soft, natural-feel silicone teat Easy- hold bottle with slow-flow teat BPA-free. Only to be used under adult supervision. Make sure a responsible person is present when your baby is feeding. Always read product information carefully before use.