Dr. Brown's Natural Flow Anti-Colic Options+ Small Sippy Bottle Startkit

The spout swap is genius—my little one took to it without a fuss after just two tries. I love that I can start with the nipple and gradually move her to the sippy spout as she gets the hang of it, and the anti-colic design means way less gas at night.

The fact that I could swap the nipple for the sippy spout without buying a whole new cup made the transition way less stressful. My little one figured out the spout in about two days, and the anti-colic vent keeps her from gulping air like she used to.

My baby took to the sippy spout on the very first try, and the transition has been completely painless since. The graduated flow control is brilliant—I can switch from the nipple to the spout without any extra adapters, which makes mornings so much easier.