Klean Kanteen Classic Insulated Stainless Steel Bottle
Klean Kanteen
Classic Insulated Stainless Steel Bottle
A stainless steel insulated bottle that replaces single-use plastic for years. The standard Loop Cap is polypropylene, so it is low-plastic rather than plastic-free; an all-stainless cap is available to remove that.
Recommended alternativePioneer of the reusable bottle category. Climate Neutral certified, 1% for the Planet member, and a founding B Corp. Food-grade 18/8 stainless steel with no plastic in the bottle body.
How this score breaks down
Strengths
- Food-grade 18/8 stainless steel body with no plastic touching your drink
- Inert material: leaches nothing and sheds no microplastics
- Founding B Corp, Climate Neutral, 1% for the Planet
- Lasts for years, replacing hundreds of single-use bottles
Trade-offs
- The cap style you choose may include some plastic or silicone parts
- Higher upfront cost than a disposable bottle
Scored on our durable-goods method (durables-v1, 2026-05-30). How we rank →
What's inside
A double-wall insulated bottle whose body is food-grade 18/8 stainless steel, an inert metal that does not leach or shed. The Classic loop cap is stainless steel; some other cap styles add food-grade silicone or a little plastic.
| Part | Material |
|---|---|
| Bottle body | 18/8 (304) stainless steel |
| Cap | Stainless steel loop cap; some styles add silicone or plastic |
Free of BPA, BPS, phthalates, plastic liner
- Packaging
- Stainless steel body. The bottle ships with a polypropylene (plastic) Loop Cap; an all-stainless cap is sold separately that keeps it fully plastic-free.
- Microplastics
- None; steel does not shed microplastics
Attributes
What this product is, at a glance.
Certifications
Independent, third-party certifications only. Tap any badge to see what it verifies.
About Klean Kanteen
Klean Kanteen is a family-owned California company that helped start the reusable-bottle category. It is a founding B Corp, Climate Neutral certified, and a 1% for the Planet member.
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