MAM s nipples are designed to resemble a mother s nipple during breastfeeding. To achieve this MAM observed 16 infants breastfeeding using ultrasound technology. The result is a unique flat shaped nipple that fits perfectly in baby s mouth and makes the switch back-and-forth between breast and bottle easy. All MAM products are made from BPA-free materials for maximum safety. These nipples fit all MAM bottles and are suitable for both breast milk and formula. The MAM nipple is available in five different flow rates: 0 – extra slow flow (newborn) 1 - slow flow (0+ months) 2 - medium flow (2+ months) 3 - fast flow (4+ months) and x - extra fast flow for thicker liquids (6+ months). **Market research 2009-2020 tested with 1 572 babies.