Brandwave

Hydro Flask vs Klean Kanteen:Which is more popular?

In September 2026, Hydro Flask had more branded searches than Klean Kanteen among metal straw brands worldwide. Hydro Flask had about 450,000 branded searches, while Klean Kanteen had 74,000. Hydro Flask made up 77.7% of all metal straw brand searches we track, and Klean Kanteen accounted for 12.8%. When we asked ChatGPT and Google AI Overviews about metal straw brands, Klean Kanteen appeared in four of the five answers and Hydro Flask in none.

Among metal straw brands worldwide in September 2026

Who do people search for more?

Hydro Flask, about 6 searches for every 1 for Klean Kanteen

Hydro Flask 450K searchesKlean Kanteen 74K searches

Who does AI mention more?

Klean Kanteen, mentioned in 4 of 5 answers, Hydro Flask in 0

Klean Kanteen in 4 of 5Hydro Flask in 0 of 5

Who does AI recommend more?

Klean Kanteen, the only one of the two named

Klean Kanteen first in 4Hydro Flask never named

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Top metal straw brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Klean Kanteen was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Hydro Flask did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Klean Kanteen1st
  2. OXO2nd
  3. Hiware3rd
  4. Stanley4th
  5. Hydro Flask–
  6. YETI–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Klean Kanteen4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Hiware4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • OXO4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Stanley2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Hydro Flask0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • YETI0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about metal straw brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.

Is Hydro Flask or Klean Kanteen more popular in search?

This chart shows how often people search Google for Hydro Flask and Klean Kanteen by name. Each line represents a brand's share of searches for all six metal straw brands we track, month by month, from English-language searches worldwide.

Hydro Flask and Klean Kanteen among metal straw brands worldwide, by month

Share of searches by month for Hydro Flask, Klean Kanteen. The figures are in the table below the chart.

View monthly share of searches table
MonthHydro FlaskKlean KanteenStanleyYETIHiwareOXO
Oct 202581%10.9%7.3%0.43%0.35%0.03%
Nov 202581%10.9%7.3%0.43%0.35%0.02%
Dec 202581%10.9%7.3%0.43%0.43%0.02%
Jan 202680.9%10.9%7.3%0.43%0.53%0.02%
Feb 202680.9%10.9%7.3%0.43%0.52%0.03%
Mar 202677.7%12.8%8.6%0.41%0.5%0.02%
Apr 202678.9%13%7.1%0.42%0.63%0.02%
May 202676.6%15.4%6.9%0.61%0.49%0.02%
Jun 202677.3%12.7%8.5%0.93%0.5%0.02%
Jul 202678.9%13%7.1%0.63%0.42%0.02%
Aug 202681%10.9%7.3%0.43%0.35%0.02%
Sep 202677.7%12.8%8.6%0.5%0.41%0.02%

How has the Hydro Flask and Klean Kanteen comparison changed over the last 12 months?

3 findings

How did search popularity change for metal straw brands worldwide in September 2026?

2 changes

  1. In September 2026, Klean Kanteen gained share of searches among metal straw brands worldwide, from 10.9% to 12.8%.

  2. In September 2026, Hydro Flask lost share of searches among metal straw brands worldwide, from 81% to 77.7%.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Hydro Flask’s and Klean Kanteen’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Hydro Flask

1 branded search term

  • hydro flask

Klean Kanteen

1 branded search term

  • klean kanteen

How the Brand Demand Index is measured

Other head-to-heads among metal straw brands

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