Dr. Brown's 窄口旅行蓋 3入

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.

I’ve used these caps on a few flights now and they really do keep the formula from leaking out when the cabin pressure changes. The only downside is they don’t fit my wider bottles, but for narrow necks they’re perfect.