Our Lansinoh’s BPA and BPS free baby bottles, now with an innovative new shape, have been carefully crafted for a comfortable hold while feeding baby. Featuring the innovative NaturalWave® Teat - clinically proven to reduce nipple confusion with extra-soft and flexible silicone which adapts to baby’s palette, encouraging natural tongue movement and allowing baby to control the milk flow. The extra soft and flexible peristaltic teat has a wide textured base for easy latch on and encourages baby's wave like tongue movement, so that baby can continue using their natural sucking style and maintain established breastfeeding patterns. The inner vertical ridges also make the teat stronger and collapse resistant, whilst the Anti-Colic Air ventilation System reduces the intake of air. Now with a new stackable lid for space-saving storage.