Your options have never been better with Dr. Brown’s Natural Flow® Options+™ Glass Narrow-Neck Bottle. From teat to base, it makes for a comfortable feeding experience for baby and eases the transition from breast to bottle and back again.The Dr Brown's Options+ range feature an unique internal vent system that channels air away from baby’s feed as air can cause these colicky symptoms. The enhanced design of the Dr Brown’s Options+ Anti-Colic Bottle is clinically proven to reduce windy colic due to Dr Brown’s unique 100% vacuum-free vent system. Dr Brown’s Options+ bottles offer an easy and comfortable way to feed your little-one, adapting to their needs as they grow. With the unique design, this bottle can be used with or without the removable internal vent system, transforming it into a teat-vented bottle for more convenience. Use Dr Brown’s Options + bottles from birth – don’t wait until your baby develops colic!