The MAM Anti-Colic wide mouth transition bottle system is designed to be as close to breast-feeding as possible in a reusable bottle. All MAM bottles are constructed of bisphenol -a free materials. The orthodontic nipple is made of ultra soft silicone and encourages baby to use a natural suckling action similar to breast-feeding. The Anti-Colic vented base ensures babies can drink calmly and relaxed. Ventilation holes regulate the pressure balance. The milk can flow evenly without bubbles. Removable bottom makes bottle clean up a snap. Your baby will feed quietly for longer, uninterrupted periods just like breast-feeding. Less air intake means less spit up and gas. Features sealing cap for spill-free travel. MAM shaped orthodontic nipple, BPA free, trusted by mothers for over 20 years. The bottle comes with a wide mouth for easy filling and an easy-to-read scale for accurate measuring. Includes a removable base for easy cleaning. Includes one 5 ounce girl bottle, each with 1 slow flow nipple.Can be sterilized in the microwave in just 3 minutes!

The MAM Ulti-vent wide mouth transition bottle system is designed to be as close to breast-feeding as possible in a reusable bottle. All MAM Bottles are constructed of Bisphenol -A free materials. The orthodontic nipple is made of ultra soft silicone and encourages baby to use a natural suckling action similar to breast-feeding. The Ulti-vent valve is sensitive enough to ensure baby a constant, air free flow of liquid. Removable bottom makes bottle clean up a snap. The new one-piece MAM valve is highly sensitive to baby's suckling, assuring a constant, air-free flow. Your baby will feed quietly for longer, uninterrupted periods just like breast-feeding. Less air intake means less spit up and gas. Features sealing cap for spill-free travel. MAM shaped orthodontic nipple, BPA free, trusted by mothers for over 20 years. The bottle comes with a wide mouth for easy filling and an easy-to-read scale for accurate measuring. Includes a removable base for easy cleaning.