Campus 600ml フリップキャップボトル - Spiderman

The click-to-close cap is genius, my daughter actually shuts it properly instead of leaving it open like her old bottle. Fits perfectly in the side pocket of her school bag and hasn't leaked once.

My son used to soak his backpack on the way to school, but this one hasn't leaked once since September. The button pops the lid open one-handed, which he loves, and it's survived being dropped on the playground more times than I can count.

The click-to-close cap is genius for my daughter, she can shut it one-handed without looking. I've been putting fizzy water in it for weeks and it hasn't leaked once in her backpack.