Dr. Brown's トラベルキャップ 細口 3個

Flew cross-country last week and not a single drop leaked out of the bottle, even with the cabin pressure changes. The seal is snug but easy to pop on and off, and the set of three means I always have a spare in the diaper bag.

Finally, a cap that actually stays sealed during the flight — no more leaking formula in my diaper bag. It screws on smoothly and doesn’t crack after a few uses. Exactly what I needed for travel.

These caps fit my bottles perfectly and didn’t leak a drop during a bumpy road trip. The narrow neck design is exactly what I needed for my toddler’s cups, though I wish the pack had one more piece for the price.