I have 4 of these for my kids they love them and so easy to use and clean up just throw them in the dishwasher and done.

I have used these reusable, machine washable , BPA-Free bottles for a few years now, and they are perfect for school lunches: fit most vertical lunchboxes and are non-spill. The only downside is that there is tiny rubber piece on top of the bottle and if you don't take it out before sticking the bottle into the dishwasher, it might pop out and your bottle won't be spill proof. Otherwise, great product for back to school.