From nipple to base, the Options+ Wide-Neck Bottle eases the transition from breast to bottle and back again. Each nipple is specially engineered to offer the same consistent, natural flow so you and baby know what to expect each time. The anti-colic internal vent system features an enhanced design to improve an already innovative feeding experience. The fully-vented bottle is clinically proven to reduce colic, better preserves nutrients, aids in digestion for a good night’s sleep, and provides a flow rate that supports breastfeeding. Our bottles work best with the vent system in place but it’s great to have options when baby’s feeding develops. Just remove the vent when you feel it’s time – no need to introduce a different bottle. | Dr. Browns Dr. Brown's Options+ Wide Neck Bottle 2-Pack 5Oz/150ml in Clear