RealFeel anti-colic nipple Easy-to-clean wide neck design Third-party lab tested Safe for all methods of sterilization Zero Bisphenols, Phthalates, Microplastics & Estrogenic Activity We've created the best bottles for breastfed babies. Made from a revolutionary material created specifically for infant feeding, BuubiBottle Mini 5oz / 150ml features the clarity and safety of glass but is lightweight and durable with no risk of cracking or breakage. With its compact size, BuubiBottle Mini is perfect for on-the-go feeding, easily fitting into your purse or diaper bag. The RealFeel bottle nipples provide a seamless feeding experience for your baby, no matter how they nurse. Carefully engineered with different texture zones and thicknesses to emulate the feel of a breast, they feature an anti-collapse design and a flexible tip that reacts naturally to your baby's technique.