Dr. Brown's 4oz Thin Bottles 3Pk

• Features a patented two-piece internal vent system for vacuum-free feeding
• Air never mixes with the breastmilk or formula in the bottle, which minimizes oxidation and helps maintain essential nutrients like vitamins C, A and E
• Babies feed more comfortably because the vent system allows them to nurse without fighting the negative effects of the vacuum or the discomfort of ingesting air bubbles
• Made of BPA-free plastic
• Package includes three 4oz bottles, each with vent system and nipple (level one)