Bottles Come with Level 1 Nipple Free From Bisphenol-A Phthalates & PVC 100% Bisphenol-A Free Glass Bottle BornFree Valve: Smooth Flow, No Leaks! Helps Reduce colic & Ear InfectionsThe unique BornFree venting system allows air to flow into the bottle and reduces the hard sucking that often leads to painful colic, gas and middle-ear infections.The Safe and Smart Feeding SystemNipples Available in 5 Flow Rates The BornFree nipples are soft and gentle for your baby to suckle. The nipples are available in 5 different flow rates to suit the requirements of your baby from 0-18 months.The Revolutionary BornFree Venting System The innovative air vent keeps a low level of vacuum which is known to help reduce colic symptoms such as gas and spit up. The unique inner valve prevents hard sucking and minimizes the risk of middle-ear infection.New Clear Glass Bottle The new BornFree bottle is made of glass, and does not contain Bisphenol-A. With glass there are no left over odors, less build up of bacteria and no after-taste. It is very easy to clean and looks and feels like new even after multiple uses.Suitable for Breast Fed Babies The BornFree feeding system is especially suitable for breast fed babies who are being introduced to bottle feeding. The unique air valve begins the steady flow of liquid when a baby starts to nurse - just like with breast feeding.The BornFree Vented Glass BottleThe BornFree vented glass bottle is made of pure natural glass and is 100% free if Bisphenol-A (BPA). BPA is a chemical compound that is used to create polycarbonate plastic, a hard, clear plastic used widely in consumer products, including baby bottles. Recent research suggests that small amounts of BPA may leach into foods or beverages stored in polycarbonate containers, especially when the contents are heated and may act as an endocrine disruptor, mimicking natural human hormones. BornFree vented glass bottle. Your safe, natural alternative.