Pigeon SofTouch™ Wide Neck PPSU Nursing Bottle Star - 160ml For 0+ months. Comes with SS size nipple specially designed for newborn baby. The tip of nipple size fits perfectly and the extra soft silicone material encourages natural sucking even in newborn baby. Nursing bottle made with PPSU (Polyphenylsulfone) compatible with SofTouch™ wide neck nipple. Ideal for breastfed baby Anti-Colic System. Medical Grade Plastic bottle Clinically tested for seamless switch between breast and bottle Shaped to help minimize swallowed air Advanced venting system to prevent gas SofTouch™ Peristaltic PLUS Nipple - 100% silicone, super soft and flexible to allow for natural and smooth tongue movement Bottle is made from Polyphenylsulfone (PPSU) material with high heat resistance and excellent durability BPA Free Our PP/PPSU Nursing Bottles (both Wide-Neck and Slim-Neck) can be sterilized using the Rapid Steam Sterilizer. Our SofTouch™ Peristaltic PLUS Nipples are designed based on extensive research on the 3 natural movements that a baby do while feeding. 1) Latching on: The lips open outward and latch on the areola. A newborn baby has a sucking fossa that is small round cavity in the center of the upper jaw. 2) Peristaltic tongue movement (sucking): 'Wave-like' tongue movement squeezes the nipple and extracts milk 3) Swallowing: The back of the tongue rises, channeling the milk into the esophagus.