Bottles mimic the breastfeeding experience to maintain the bond between mom and baby. 2x Softer nipple with medical-grade silicone for skin-like flexibility that adapts to babys mouth. Unique nipple shape for a wide, deep latch that mirrors breastfeeding. Integrated Anti-Colic vent helps reduce colic, gas and spit-up. SafeTemp indicator changes color to alert when milk is too hot. Made with BPA-free materials for everyday use. Includes 3 8oz Medium Flow bottles.