By providing a complete line of feeding solutions for your baby's changing needs, Evenflo - the #1 Glass Bottle Brand in the United States - continues to deliver a twist on an iconic classic. Featuring classic styling with an ergonomic shape, these eco-friendly bottles are easy to clean and assemble as well as easy to hold.Made with tempered glass, Evenflo Classic Glass Bottles are also designed with safety in mind. This Mother Nature approved bottle comes with Evenflo’s Classic™ Slow Flow soft silicone nipples. These soft silicone nipples are equipped with Micro Air Vents™ that prevent nipple collapse and promote a more comfortable feeding experience. To help take the guesswork out of feeding your little one the Evenflo Classic Glass Bottles feature molded measurement markers in both ounces and milliliters to provide an easy and accurate way to measure the volume of liquids without the risk of the measurements washing off. An added bonus is that these standard neck bottles fit many standard neck breast pumps making it easy to pump directly into the bottle for added convenience.Rest assured that the Evenflo Classic Glass Bottles are 100% free of BPA, polycarbonates, PVC and phthalates and are made of FDA approved food grade material. Evenflo Classic Glass Bottles, on top of superior sanitizing, offer eco-friendly offer style, are recyclable and sustainable, making them a great choice for all moms… even Mother Nature.For over 90 years, Evenflo has provided proven breastfeeding, infant and toddler feeding products that support parents and baby throughout their journey together. Evenflo Feeding committed ensuring better care for every baby by offering products with premium features at an affordable price.