Each NUK First Choice Baby Bottle comes with an extra-soft Anti-Colic Spout. The unique NUK First Choice Spout is made of high-quality silicone and has a natural shape so that it adapts perfectly to your child’s jaw. If you wish to combine breastfeeding with bottle-feeding, the NUK First Choice spouts are the right choice. Due to their soft zone the teats fit your child’s palate even better and thus create a natural feeling while drinking. The optimised Anti-Colic Air System prevents infant colic and provides a natural flow of liquid and thus contributes to relaxed drinking without swallowing air.