Finding a bottle that promotes a good latch can be challenging. That is why Evenflo Feeding created the Balance + Standard Neck Bottle, providing a complete line of feeding products for your baby's changing needs. The Evenflo Balance + Standard Neck Bottle was developed with a unique and intentional nipple shape to allow for a proper latch along with an adjusted flow rate that promotes a comfortable drinking pace for baby. These are key components for mom to help support healthy bottle-feeding without interfering with her personal breast-feeding journey. The gentle feeding system also comes with Evenflo's patented Proflo™ venting technology that reduces the potential for colic, reflux, gas and fussiness. To help take the guesswork out of feeding your little one, the Evenflo Balance + Standard Neck Bottles have molded measurement markers in both ounces and milliliters to provide an easy and accurate way to measure the amount of liquid in the bottle without the risk of the measurements washing off. As added bonus, you can pump directly into these standard neck bottles with the use most standard neck breast pumps, including the Evenflo Manual, Advanced Single Electric and Advanced Double Electric breast pumps. Rest assured that Evenflo bottles are 100% free of BPA, polycarbonates, PVC and phthalates and are made of FDA approved food grade material. Supports Healthy Bottle-Feeding - proper latch promoted by innovative nipple shape Avoid Nipple Preference - Designed to help avoid disrupting mom's breastfeeding journey Gulp-Free Flow Rate - FloRight™ designed to have a slower, more comfortable flow Premium Venting - Features Evenflo's patented Proflo™ Venting Technology designed to reduce the potential for colic, reflux, gas, and fussiness 100% free of BPA, polycarbonates, PVC and phthalates and are made of FDA approved food grade material