The Pigeon wide-neck feeding baby milk bottle (PPSU) allows baby to use natural feeding motion learned at the breast. It features a SofTouch Peristaltic PLUS Nipple that is 100% silicone, super soft and flexible to allow for natural and smooth tongue movement. It has an Air Ventilation System that reduces intake of gas, a potential cause of colic. The bottle is made from Polyphenylsulfone (PPSU) material with high heat resistance and excellent durability. BPA Free. Available in two sizes: 160ml/240ml.