Dr. Brown’s® Sippy Straw Bottle Conversion Kit – Narrow

I love that I didn’t have to buy whole new bottles—just swapped out the nipple for the straw piece and my daughter took to it right away. The straw is firm enough for her to grip with her lips but bends when she bites, so no frustration. She’s finally drinking water without tipping the bottle upside

I was worried the straw would leak all over the car seat, but the seal on this conversion kit is tight and the valve has held up to my toddler's aggressive tossing. It fits the narrow bottles we already had, so the transition was honestly seamless.

Switching from the bottle to a straw has been painless for my 10-month-old, the spout is just soft enough that she didn't fight it. The kit snapped onto our narrow bottles in seconds and we haven't had a single leak, even when she chucks it off the high chair.