How to Choose a Water Bottle
A great water bottle fits your day. Pick the size and lid first, then the brand.
Choose the size
Bigger means fewer refills but more weight. As a rough guide:
- 18 to 24 oz: bags, kids and short trips
- 26 to 32 oz: all-day desk or gym use
- 40 oz and up: long drives and people who drink a lot, usually as tumblers with handles
Choose the lid
The lid decides how you drink and whether it leaks:
- Straw lids: easy sipping, but usually not leakproof when tipped
- Chug or spout lids: fast drinking, often leak-resistant
- Screw caps: the most leakproof, but slower to drink from
Insulated steel vs plastic
Double-wall vacuum-insulated steel keeps drinks cold for hours and doesn't sweat on the outside, but is heavier. Plastic bottles are lighter and cheaper but don't insulate.
Check cup-holder fit and cleaning
Wide bottles often don't fit car cup holders. A wide mouth makes adding ice and cleaning much easier, and simpler lids have fewer parts to scrub.
Frequently asked questions
How do I clean a water bottle?
Wash it regularly with warm soapy water and a bottle brush, and take the lid apart if it's designed to come apart. Let everything dry fully before reassembling.
Why does my bottle smell?
Usually from residue in the lid or straw. Clean all lid parts separately and let them dry completely.
Related research
The 4 Best Insulated Water Bottles
The best insulated water bottles and tumblers for all-day cold water, cup holders, the gym and kids, with honest limitations.
CategoryWater Bottles
Our water bottle research: the best insulated bottles and tumblers for the gym, office and car, plus a buying guide.

