Munchkin’s Flow Nipple Shield+ is the first innovation that lets moms actually see breastmilk flow while nursing. Its patented built-in channel provides visual confirmation to boost confidence and reassure moms their baby is getting the nourishment they need—supporting one of life’s most important bonding moments. Flow also addresses one of the most common concerns among breastfeeding moms: the perception of low supply. Made from 100% BPA-free, food-grade silicone, it’s safe, durable, and lasts up to 200 uses.