Campus 彈蓋水壺 600 ml - 芭比

Fits perfectly in my backpack's side pocket and hasn't leaked once, even with fizzy water in it. The cap staying up while I drink is the detail I didn't know I needed.

The button flap means I can open it one-handed while holding my daughter's hand, and it clicks shut tight enough that I've tossed it in my bag with no leaks. It's light but doesn't feel flimsy, and I like that I can put fizzy water in it without worrying.

Fits perfectly in my backpack's side pocket and hasn't leaked once, even with fizzy water in it. The button release is handy when I'm holding a book in the other hand.