Unfortunately, the Stanley Quencher H2.0 Flowstate Tumble isn't entirely leakproof, so it needs to be upright at all times.

The popular Owala water bottle is known for its clever leak-proof design, flip-top lid, and well-insulated construction, and ...

With these Wirecutter-approved picks under $100, you don’t have to spend a lot to get a good deal this Amazon Prime Day.