Made with PPSU (Polyphenylsulfone) material, this range has a higher heat resistance of 180°C, safe for babies and worry-free for parents! Anti-colic as our specialized technology of Air Ventilation System (AVS) reduces intake of gas, a potential cause of colic. Softouch new unique features: To assist good latch on with latch-on line for setting tongue into a perfect position To allow smooth tongue movement with softer nipple that is closest to mother’s nipple. PPSU is widely used in manufacturing medical and food-contact products. The color of the bottle is the natural color of this material.