Butelka Summit z ustnikiem

The straw lid snaps shut tight enough that I don't worry about it leaking in the backpack, and the double walls really do keep the water ice-cold through an entire school day. My daughter actually finishes her bottle now instead of dumping warm water out.

My kid left this in a hot car for two hours and the water was still refreshingly cold, thanks to the double-walled insulation. The straw lid truly doesn't leak, which is a lifesaver for a busy school day.

I’ve been using this bottle for a few weeks now and the vacuum insulation really holds up—ice cubes are still intact after a full afternoon at the playground. The straw lid is easy for my daughter to open herself, and it hasn’t leaked in her backpack once.