Brandwave

Birkenstock vs OOFOS:Which is more popular?

In September 2026, Birkenstock had more branded searches than OOFOS among flip flop brands worldwide. Birkenstock had about 6.1 million branded searches, while OOFOS had 368,000. Birkenstock made up 38.7% of all flip flop brand searches we track, and OOFOS accounted for 2.3%. When we asked ChatGPT and Google AI Overviews about flip flop brands, Birkenstock and OOFOS each appeared in two of the five answers. OOFOS was mentioned before Birkenstock in two out of three answers that named either.

Among flip flop brands worldwide in September 2026

Who do people search for more?

Birkenstock, about 17 searches for every 1 for OOFOS

Birkenstock 6.1M searchesOOFOS 368K searches

Who does AI mention more?

Both were mentioned in 2 of 5 answers.

Birkenstock in 2 of 5OOFOS in 2 of 5

Who does AI recommend more?

OOFOS, named ahead of Birkenstock in 2 of 3 answers

OOFOS first in 2Birkenstock first in 1

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Top flip flop brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Birkenstock and OOFOS were each mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. OOFOS was listed before Birkenstock in two out of three answers that named either.

Most recommended by AI

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

  1. OluKai1st
  2. Archies2nd
  3. Reef3rd
  4. Havaianas4th
  5. Birkenstock5th
  6. OOFOS6th
  7. Vionic7th
  8. Teva8th
  9. Sanuk9th
  10. Crocs–
  11. +2 more

Mentioned by AI

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

  • OluKai5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Reef5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Archies4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Havaianas3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Birkenstock2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • OOFOS2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Vionic2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Sanuk2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Teva2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Crocs0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+2 more

See every answer about flip flop 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 19, 2026.

Is Birkenstock or OOFOS more popular in search?

This chart shows how often people search Google for Birkenstock and OOFOS by name. Each line represents a brand's share of searches for all 12 flip flop brands we track, month by month, from English-language searches worldwide.

Birkenstock and OOFOS among flip flop brands worldwide, by month

Share of searches by month for Birkenstock, OOFOS. The figures are in the table below the chart.

View monthly share of searches table
MonthCrocsBirkenstockHavaianasOOFOSFitFlopOluKaiReefVionicSanukIpanemaArchiesTeva
Oct 202552.5%35.1%7%1.7%1.4%0.95%0.35%0.64%0.23%0.04%<0.01%<0.01%
Nov 202550.9%34.1%10.2%1.7%1.1%0.92%0.28%0.5%0.18%0.03%0.04%<0.01%
Dec 202547%31.5%17.2%1.3%1%1%0.25%0.47%0.17%0.03%0.04%<0.01%
Jan 202650.2%33.5%10%2%1.6%1.1%0.41%0.74%0.27%0.05%0.03%<0.01%
Feb 202650.7%33.9%10.1%1.4%1.4%1.1%0.61%0.61%0.22%0.05%0.02%<0.01%
Mar 202652.1%34.9%7%1.4%1.4%1.4%0.94%0.63%0.23%0.06%0.01%<0.01%
Apr 202647.4%38.8%7.8%1.6%1.3%1.6%0.86%0.57%0.21%0.06%<0.01%<0.01%
May 202641.7%41.7%10.2%1.7%1.4%1.4%1.1%0.5%0.23%0.1%<0.01%<0.01%
Jun 202644.4%36.6%13.4%1.5%1.2%1.2%0.98%0.36%0.2%0.13%<0.01%<0.01%
Jul 202644.5%36.7%13.4%1.5%1.2%1.2%0.81%0.36%0.16%0.13%<0.01%<0.01%
Aug 202644.4%36.3%13.3%2.2%1.2%1.2%0.66%0.44%0.2%0.16%0.01%<0.01%
Sep 202647.3%38.7%7.7%2.3%1.3%1.3%0.57%0.57%0.21%0.08%0.03%<0.01%

How has the Birkenstock and OOFOS comparison changed over the last 12 months?

3 findings
  • Birkenstock was ahead of OOFOS in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Birkenstock’s share of searches among flip flop brands worldwide moved from 35.1% to 38.7%, and its estimated monthly branded searches moved from 5M to 6.1M.
  • Across the 12 months ending September 2026, OOFOS’s share of searches among flip flop brands worldwide moved from 1.7% to 2.3%, and its estimated monthly branded searches moved from 246K to 368K.

How did search popularity change for flip flop brands worldwide in September 2026?

2 changes

  1. In September 2026, Birkenstock gained share of searches among flip flop brands worldwide, from 36.3% to 38.7%.

  2. OOFOS’s share of searches among flip flop brands worldwide has gained ground for 3 months in a row, from 1.5% to 2.3% in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Birkenstock’s and OOFOS’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.

Birkenstock

1 branded search term

  • birkenstock

OOFOS

1 branded search term

  • oofos

How the Brand Demand Index is measured

Other head-to-heads among flip flop brands

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