1 m+. 1 wide-neck bottle. 260 ml. The most natural way to bottle feed. Wide breast-shaped nipple easy to combine with breastfeeding. Ultra soft nipple mimics the feel of the breast. Airflex vent designed to reduce feeding issues such as colic. No. 1 bottle brand (No 1 reusable bottle brand in United States and Canada). Choosing the right nipple Different flow rates to keep up with your baby's growth. Use the Philips Avent Natural bottles only with Philips Avent Natural feeding nipples. Natural latch on The wide breast-shaped nipple makes it easy for your baby to combine breast and bottle feeding. Ultra Soft Nipple: Designed to mimic the feel of the breast. Flexible Spiral Design: Combined with our unique comfort petals to create a flexible nipple, allowing for a more natural feed without nipple collapse. Unique Anti-Colic Airflex Vent Technology: Designed to reduce colic and discomfort by venting air away from your baby's tummy. www.philips.com/avent. www.ptpa.com. Call toll-free: 1.800.54.Avent. Winner: Parent tested. Parent approved. www.ptpa.com. BPA free. FSC. Made in England.