Brandwave

Calvin Klein vs Mack Weldon:Which is more popular?

In September 2026, Calvin Klein had more branded searches than Mack Weldon among underwear brands worldwide. Calvin Klein had about 3.4 million branded searches, while Mack Weldon had 33,100. Calvin Klein made up 16% of all underwear brand searches we track, and Mack Weldon accounted for 0.16%. When we asked ChatGPT and Google AI Overviews about underwear brands, Calvin Klein appeared in all five answers and Mack Weldon in two. Calvin Klein was mentioned before Mack Weldon in every answer.

Among underwear brands worldwide in September 2026

Who do people search for more?

Calvin Klein, about 101 searches for every 1 for Mack Weldon

Calvin Klein 3.4M searchesMack Weldon 33.1K searches

Who does AI mention more?

Calvin Klein, mentioned in every answer we collected

Calvin Klein in 5 of 5Mack Weldon in 2 of 5

Who does AI recommend more?

Calvin Klein, named ahead of Mack Weldon in every answer

Calvin Klein first in 5Mack Weldon never first

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Top underwear brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Calvin Klein appeared in all five answers. Mack Weldon was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Calvin Klein was listed before Mack Weldon in every answer.

Most recommended by AI

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

  1. Calvin Klein1st
  2. Uniqlo2nd
  3. SKIMS3rd
  4. MeUndies4th
  5. Tommy John5th
  6. Quince6th
  7. Hanes7th
  8. Intimissimi8th
  9. Mack Weldon9th
  10. Jockey–
  11. +2 more

Mentioned by AI

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

  • Calvin Klein5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Uniqlo4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • MeUndies3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • SKIMS3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Intimissimi2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Quince2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Hanes2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Tommy John2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mack Weldon2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Jockey0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+2 more

See every answer about underwear 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 Calvin Klein or Mack Weldon more popular in search?

This chart shows how often people search Google for Calvin Klein and Mack Weldon by name. Each line represents a brand's share of searches for all 12 underwear brands we track, month by month, from English-language searches worldwide.

Calvin Klein and Mack Weldon among underwear brands worldwide, by month

Share of searches by month for Calvin Klein, Mack Weldon. The figures are in the table below the chart.

View monthly share of searches table
MonthUniqloCalvin KleinIntimissimiQuinceJockeyHanesMeUndiesStep OneTommy JohnSKIMSMack WeldonBonds
Oct 202568.2%13.8%13.8%1.1%0.83%0.55%0.55%0.36%0.37%0.3%0.17%0.09%
Nov 202566%16.2%13.2%1.1%0.65%0.53%0.65%0.62%0.53%0.24%0.24%0.07%
Dec 202561.4%15.1%18.5%1.5%0.74%0.61%0.74%0.4%0.41%0.22%0.22%0.08%
Jan 202666%13.3%16.3%1.3%0.8%0.54%0.8%0.33%0.24%0.24%0.16%0.07%
Feb 202658.9%21.7%14.5%1.4%0.88%0.58%0.72%0.44%0.32%0.32%0.18%0.08%
Mar 202660.7%22.3%12.2%1.4%0.9%0.6%0.6%0.4%0.27%0.27%0.15%0.07%
Apr 202667.2%16.5%11.1%1.6%0.99%0.67%0.67%0.44%0.37%0.3%0.16%0.07%
May 202662.9%18.9%12.7%1.8%1.1%0.62%0.62%0.41%0.42%0.34%0.15%0.07%
Jun 202660.7%18.3%15%1.7%1.3%0.74%0.74%0.49%0.33%0.4%0.18%0.08%
Jul 202660.6%18.3%15%1.7%1.3%0.74%0.74%0.48%0.4%0.49%0.15%0.08%
Aug 202663.2%15.6%12.7%1.8%1.1%0.63%0.63%0.5%3.1%0.42%0.15%0.08%
Sep 202665.1%16%13.1%1.9%1.2%0.65%0.65%0.44%0.35%0.29%0.16%0.09%

How has the Calvin Klein and Mack Weldon comparison changed over the last 12 months?

3 findings
  • Calvin Klein was ahead of Mack Weldon in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Calvin Klein’s share of searches among underwear brands worldwide moved from 13.8% to 16%, and its estimated monthly branded searches held steady at 3.4M.
  • Across the 12 months ending September 2026, Mack Weldon’s share of searches among underwear brands worldwide moved from 0.17% to 0.16%, and its estimated monthly branded searches moved from 40.5K to 33.1K.

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

1 change

  1. Estimated monthly branded searches for Mack Weldon worldwide fell 18.3% over 12 measured months, from 40.5K to 33.1K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Calvin Klein’s and Mack Weldon’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.

Calvin Klein

1 branded search term

  • calvin klein

Mack Weldon

1 branded search term

  • mack weldon

How the Brand Demand Index is measured

Other head-to-heads among underwear brands

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