Baby & Kids · Kids Water Bottles
Which kids bottles are genuinely leak-proof in a backpack?
Reviewer consensus
The Thermos FUNTAINER and Owala Kids FreeSip earn the strongest leak-proof reputations across the verified-purchase and parenting-community reviews we read, with several reviewers specifically reporting no spills after being tossed in bags. No bottle is universally spill-proof, however; some reviewers note minor seepage if a straw bottle is stored upside down for long periods.