1 Bottle, 9oz/260ml, Extra soft slow flow nipple, 1m+. The new Philips Avent Natural bottle is compatible with the Philips Avent range, excluding Classic bottles and cup handles. We advise to use the Natural bottles with Natural feeding nipples only. The wide breast shaped nipple promotes a natural latch on similar to the breast. Designed to give a more comfortable and contented feed for your baby. The skin-soft nipple material closely resembles the feeling of the breast, making it easy for your baby to combine breast and bottle feeding.