In 2004, in Chico, California, a man named Robert Seals was frustrated that every reusable water bottle was either plastic or lined with something questionable. He made one out of food-grade stainless steel, no liner, no aftertaste, and Klean Kanteen helped launch the entire movement away from single-use plastic bottles. A family-owned company put a dent in a billion-bottle problem.
The short version: Klean Kanteen, founded 2004 and still family-owned in Chico, makes durable stainless steel bottles, insulated flasks, and food canisters, and is a certified B Corp and 1% for the Planet member. Buy it for a bottle that outlives a decade of trail abuse and keeps plastic out of the waste stream. It is not the flashiest brand; it is one of the most principled.
Where Klean Kanteen came from
The original single-wall steel bottle was a quiet revolution in the years before reusables were everywhere, and Klean Kanteen stayed family-owned while the category exploded around it. It became an early B Corp and a founding-era voice on eliminating single-use plastic, backing the values with certifications rather than slogans.
What they actually make well
Stainless steel drinkware and food storage: classic single-wall bottles, insulated TKWide and TKPro flasks, kids’ bottles, and canisters. It sits alongside camp-kitchen and hydration gear from the likes of Jetboil and pairs with any pack on any trail.
Built to last?
Steel is close to indestructible, and Klean Kanteen backs its gear with a strong lifetime warranty and replaceable caps, so a worn lid does not mean a landfilled bottle. As a certified B Corp, its durability and sustainability claims are third-party audited, not self-declared, which is exactly the standard this series prizes.
The causes they actually fund
Klean Kanteen is a 1% for the Planet member and channels giving toward plastic-pollution and clean-water work, causes woven directly into why the product exists. Its B Corp status ties the whole business to measured social and environmental performance, and organizations like Surfrider fight the same plastic problem its bottles were built to reduce.
Where this gear comes from, and where it earns its place
Born in Chico, at home on every trail everywhere, because water is the one thing you carry no matter the objective. Fill up and pick any line on the Trail Atlas.
The honest take
Steel bottles are heavier than plastic or titanium, and ultralight hikers may balk at the ounces. But for durability, no-taste water, and a company whose values are certified rather than claimed, Klean Kanteen is the easy conscience-clear choice. Buy one; use it for a decade.
A steel bottle that helped end the single-use habit, still family-owned. More makers in Brands We Love. Last verified July 2026.