20 oz Tumbler — Matte Black
$24.99
Powder-coated matte black with brushed stainless rim and base. Soft-touch finish that resists fingerprints.
Premium insulated drinkware
Double-wall vacuum insulated stainless steel tumblers, laser-engraved with the HARMŌNI US emblem. Built to last. Designed for everyone.
Our philosophy
HARMŌNI US exists for the conviction that every person carries an irreducible dignity and the right to self-determination — and that this shared truth is what binds us as a single human family. Our tumblers are objects you live with daily; each one is engraved as a small, quiet reminder of that idea.
No country. No tribe. No team. Just a person, a vessel, and a belief held in common.
The collection
Two capacities. Five finishes. Each tumbler is laser-engraved with our emblem and ships from our independent storefronts on Amazon and eBay.
Sized for a generous coffee, a long workday, or a single hike. Fits standard car cup holders.
$24.99
Powder-coated matte black with brushed stainless rim and base. Soft-touch finish that resists fingerprints.
$24.99
Deep navy powder coat over double-wall stainless steel. Subtle, refined, and built for daily use.
$24.99
Raw brushed stainless steel — the most timeless finish in our collection. Lets the engraving speak for itself.
$24.99
Olive-toned matte powder coat. A grounded, earthy finish that pairs naturally with outdoor wear.
$24.99
A soft, warm pink with a matte finish. Quiet, considered, and decidedly modern.
For long drives, hot afternoons, and anyone who'd rather refill less often. Tapered base fits most cup holders.
$29.99
The flagship — full-capacity matte black with our emblem laser-engraved on the front panel.
$29.99
Deep navy in the larger 30 oz form. A quietly serious vessel for the long haul.
$29.99
Raw brushed stainless at full 30 oz capacity. The cleanest expression of the design.
$29.99
Earthy olive matte finish in our larger size. Made for hot days and long trails alike.
$29.99
Warm matte pink at full capacity. Soft tone, serious build.
Specifications
Keeps hot drinks hot for hours and cold drinks cold all day. The vacuum between the inner and outer walls eliminates conductive heat transfer.
Food-safe, rust-resistant, and BPA-free. The same alloy used in commercial kitchens.
Our mark is etched directly into the steel — not printed. It won't fade, peel, or wash off.
Each tumbler ships with a clear lid that resists splashes and reduces heat loss between sips.
20 oz (approx. 591 ml) for everyday use and 30 oz (approx. 887 ml) for longer outings. Both fit most standard car cup holders.
To preserve the powder-coat finish and engraving, we recommend hand-washing with mild soap.
About the brand
HARMŌNI US is an independent drinkware brand based in Orlando, Florida. We design, package, and ship every order from the United States, working with a small team and a long view. Our tumblers are sold through our trusted partners on Amazon and eBay so that buyers anywhere in the country can receive them quickly and reliably.
If you'd like to reach us — about an order, a wholesale inquiry, or just to share what HARMŌNI US means to you — we'd genuinely like to hear from you.
Questions, answered
The wordmark reads aloud as "harmonious." HARMŌNI is the individual note; US is the chord. The "US" is the universal first-person plural pronoun — us, as in all of us together — not the United States. The brand is American in origin but universal in philosophy. The phrase "Billions of Sovereign Beings, One Humanity" appears beneath the emblem on every tumbler as a daily reminder that individual dignity and shared humanity are the same idea, looked at from two angles.
HARMŌNI US is an independent brand based in Orlando, Florida, USA. We design, package, and ship every order from the United States. Our products are sold to customers across America through Amazon and eBay. While the brand is American in origin, the underlying philosophy — that every person is a sovereign being and that this is what binds us as one humanity — is intentionally universal and does not reference any nation.
Three things distinguish HARMŌNI US from generic insulated drinkware brands. First, every tumbler is laser-engraved directly into the steel — not printed — so the emblem will not fade, peel, or wash off. Second, the brand carries a stated philosophical position about individual sovereignty and shared humanity, articulated openly through our essay collection, The Resonance. Third, the visual design follows a deliberately restrained, shibui-influenced aesthetic — minimal logos, considered colors, and an emphasis on objects you live with for years rather than replace.
The Resonance is the HARMŌNI US essay collection at harmoni-us.com/resonance. It contains writing on sovereignty, daily practice, restraint, and what it means to be one humanity made of billions of distinct lives. The essays exist to articulate the brand's philosophy openly, in long form — so that anyone curious about what HARMŌNI US stands for can read the actual position rather than infer it from marketing copy.
HARMŌNI US tumblers are designed for people who want everyday objects to carry meaning beyond their function — readers of literary fiction and philosophy, customers drawn to minimalist or shibui aesthetics, people who value individual sovereignty without tribalism, and anyone who prefers durable, considered drinkware over disposable or trend-driven products. The brand has no political affiliation and is intentionally welcoming to readers across the political spectrum who share a baseline commitment to individual dignity and shared humanity.
Our tumblers ship through Amazon and eBay fulfillment networks. Click the buy link on any product above to see current shipping options and timelines for your address.
We list on both platforms so customers can choose whichever marketplace they prefer — same product, same engraving, same quality. Buy wherever you're most comfortable.
The HARMŌNI US mark sits above the words "Billions of Sovereign Beings, One Humanity." It's a daily reminder that individual sovereignty and shared humanity are not in tension — they're the same idea, looked at from two angles.
We recommend hand-washing to extend the life of the powder-coat finish and the laser engraving. The interior stainless steel is fully food-safe and easy to clean.
Performance varies by ambient temperature and how often the lid is opened, but in normal indoor conditions you can expect cold drinks to stay cold for most of the day and hot drinks to stay hot for several hours.