Designed by feeding experts at the world's #1 bottle maker and backed by over 50 years of research, these soft, flexible 100% silicone baby bottle nipples have a wide, textured base and gentle slope to help babies latch and control the flow of milk. Advanced airflow technology minimizes gas and colic, while the design promotes healthy oral development for your little one. Clinically proven to reduce nipple confusion for breastfed babies, they support a smoother transition between breast and bottle. With three flow levels—Lansinoh slow flow nipples, Lansinoh medium flow nipples, and Lansinoh fast flow nipples—these baby bottle nipples adapt perfectly to your little one's growing feeding needs. Voted 2024 Best Baby Bottle by Wirecutter, Lansinoh Nipples are engineered for a universal fit on all Lansinoh bottles, making them one of your newborn essential must- haves for more comfortable feedings.