Klean Kanteen Rise Food Box 34oz
A grown-up lunchbox that survives being sat on.
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The rating, unpacked
Our overall rating is the weighted average of these sub-scores. Category-specific criteria appear alongside the universal ones — no black boxes.
The wider verdict
"The bento box for people who have grown out of plastic Tupperware."
Pros
- 90% recycled steel
- Silicone-sealed leakproof lid
- Fits a proper lunch, not a snack
Cons
- Not microwave safe (stainless)
- Silicone lid needs periodic replacement
Full specs
- Best for
- Office lunches and school lunchboxes.
- Material
- 18/8 Stainless Steel
- Capacity
- 1000 ml
- Weight
- 340 g
- Insulated
- Leakproof
- Dishwasher safe
- BPA-free
- Recyclable
- Recycled content
- 90%
- Country of origin
- USA (manufactured in China to KK spec)
- Warranty
- Lifetime "Strong As Steel"
- Certifications
- B Corp, Climate Neutral Certified
How we scored it
Our overall rating blends five weighted factors — materials & construction, everyday usability, durability & longevity, sustainability credentials, and value for money — with small category-specific tweaks (insulation performance for drinkware, grip and cushion for yoga, seal integrity for food storage). The sub-scores above are the rating; we then cross-check it against independent reviews from outlets like Wirecutter, The Guardian and Choice. If a spec, price, or long-term report changes, we update the record and re-score.