Quality signal
Evidence that someone other than us has engaged with this product. Independent coverage means a reviewer or editorial outlet examined it; a rating count only shows how many buyers rated it. Neither affects the score.
Where to buy
Parts & evidence
| Part | Material | State | Evidence |
|---|---|---|---|
| bottle body | stainless steel | non-plastic | “stainless steel water bottle” listing ↗ |
| sport cap | BPA-free plastic | plastic | “Yes, the Sport Cap is BPA-free plastic with a silicone spout.” listing ↗ |
| spout | silicone | silicone | “Yes, the Sport Cap is BPA-free plastic with a silicone spout.” listing ↗ |
| straw | stainless steel | non-plastic | “It comes with a stainless steel straw” listing ↗ |
Research on plastic in water bottles
Peer-reviewed journals, government agencies, and standards bodies.
“The researchers found that, on average, a liter of bottled water included about 240,000 tiny pieces of plastic.”
“They found that on average, a liter contained some 240,000 detectable plastic fragments—10 to 100 times greater than previous estimates, which were based mainly on larger sizes.”
Lamont-Doherty Earth Observatory / Columbia University · 2024
Quoted verbatim and linked to the source. We make no health claims of our own. Read the sources and judge them yourself.
Seller links may be affiliate links. Disclosure. We state observed evidence, not verdicts. See the scoring rubric.