サミット キッズ ストロー付きウォーターボトル

My kid left this in the car for a few hours on a warm day, and the water was still properly cold when we got back—the double-walled insulation really does its job. The straw lid clicks shut tight, so I haven't had a single leak in the backpack yet.

My kid's drink stayed ice cold for hours at the park, and I love that the straw lid hasn't leaked once in her backpack. The double-walled insulation really works.

The straw lid actually lives up to the leak-proof claim—tossed it in a backpack sideways and not a drop came out, which is a win. The insulation works well enough for a school day, though I wish the lid was a bit easier for small hands to pop open on the first try.