The Honest Company Silicone Bottle is extra soft and squeezable to naturally simulate breastfeeding. It comes with two anti-colic, medical-grade "Slow Flow" peristaltic nipples for 0-3 months with a flex accordion design that mimics natural breastfeeding for easy assimilation, as well as breast- to bottle-feeding transition. The anti-colic vent system reduces gas, colic, reflux and spit-up issues. The bottle is made of safe, medical-grade silicone without pores to harbor bacteria. In addition, no plastic ever comes in contact with liquids thanks to unique closure and bottle seal. The baby bottle also contains no BPA, BPS, PET or nitrosamines. In addition the Honest Company bottle is dishwasher and microwave safe. Features & Benefits: Safe and soft The Honest Company Silicone Bottle Naturally simulates the tactile experience of breast feeding Promotes hand-eye coordination Includes 2 "Slow Flow" peristaltic nipples for 0-3 months Peristaltic nipple with flex accordion design allows feeding in natural, wave-like motion Integrated anti-colic, tri-vent system for continuous feeding, reducing gas, colic and spit-up Made from safe, medical-grade silicone No open pores to harbor bacteria No BPA, BPS, PET or nitrosamines No plastic comes in contact with liquids due to unique closure and bottle seal Easy-grip collar made of food-grade polypropylene Soft, non-slip surface Easy to clean Dishwasher and microwave safe Exceeds U.S. and international safety standards - FDA, LFGB, CPSIA, and EN 14350 2