'PPSU' stands for the type of high-quality, BPA-free, medical-grade plastic that these bottles are made from. Perfect for a high level of usage, PPSU bottles are the 'gold standard' of plastic baby bottles.

Features:

• Encourages baby to use natural sucking pattern
• Peristaltic Nipple is ultra soft and flexible to allow for natural and smooth tongue movement
• Air Ventilation System (AVS) reduces intake of gas, a potential cause of colic
• Bottle is made from Polyphenylsulfone (PPSU) material with high heat resistance and excellent durability
• BPA Free