The MAM ultivent wide mouth transition bottle system is designed to be as close to breastfeeding 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 breastfeeding. 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. Can be sterilized in the microwave in just 3 minutes! Wide openings and 5 parts make for easy cleaning The MAM Ultra Soft Silicone Nipple makes for an easy switch between breastfeeding and bottle-feeding Base ventilation systems provide a smooth milk flow which reduces air swallowed by baby, gas, and burps Comes with a slow flow nipple
