A baby bottle designed specifically for breastfed babies. The Lansinoh momma Bottle with NaturalWave Nipple is clinically proven to reduce nipple confusion. Based on more than 50 years of research, the Lansinoh Bottle with NaturalWave Nipple enables baby to engage in the same natural sucking actions learned at the breast, allowing for a smooth transition from breast to bottle and back again. The Lansinoh bottle is ergonomically designed to encourage the natural oral development of your baby. Lansinoh bottles are anti-colic and feature Lansinoh's Air Ventilation System (AVS) to reduce intake of gas, a potential cause of colic or spit up. All Lansinoh bottles are BPA and BPS free. Compatible with the Lansinoh Smartpump double electric breast pump, Lansinoh Signature Pro double electric breast pump, the Lansinoh manual pump, and Lansinoh Breastmilk Storage Bottles. The Lansinoh bottles come in two sizes: Lansinoh momma Bottle with NaturalWave Nipple 5 oz and Lansinoh momma Bottle with NaturalWave Nipple 8 oz. Founded by a breastfeeding mom, Lansinoh has been committed to helping moms succeed in breast feeding for over 30 years. Lansinoh is a leader in breastfeeding products and accessories, famous for its award-winning cornerstone product, HPA Lanolin nipple cream and Lansinoh Breastmilk Storage Bags.