Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Sippy Bottle Starter Kit

The two-piece spout is genius—start with the nipple, swap the top, and she’s sipping like a pro. Took about three days of practice, but zero spills and the anti-colic valve still works even with the spout attached.

My baby took to the sippy spout right away, which surprised me since he’d refused every other cup we tried. The anti-colic venting is a lifesaver too—way less gassiness during the switch, and the handles are easy for his little hands to grip.

The spout design makes the bottle-to-sippy switch so much smoother—my little one figured it out in just a couple of days. I also love that the kit gives us both the bottle and sippy stages in one set, so we didn't have to buy extra pieces. The anti-colic vent still works great, no fussy gas bubbles