CoolCore™ 隔熱兒童水壺，11 盎司

We fill this before the park and it’s still icy cold four hours later, even with the lid off half the time. The double-walled stainless steel really does the job, and the size is perfect for little hands to carry without it being heavy. My daughter actually drinks more water now, which says everythi

This thing survived a whole day at the park without a single drop of condensation on the outside—the double-walled steel really does its job. My daughter actually finishes her water now because it stays refreshingly cold instead of turning lukewarm by lunchtime.

My kid's drinks are finally staying cold through the whole school day, and the double-walled insulation really works. The stainless steel interior means no weird plastic taste either, which has been a game changer.