Brandwave

Period underwear brands:Which brands are most popular in search?

In August 2026, Knix was the most searched among period underwear brands worldwide, with an estimated 216K branded searches and 52.6% estimated Share of Search within this set. Worldwide · English terms: these are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Knix52.6%
  2. Modibodi17.8%
  3. Thinx9.9%
  4. Saalt9.7%
  5. WUKA6.8%
  6. Aisle3.2%

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Share of SearchLeaderboard

A curated comparison of brands offering reusable period underwear, measured through worldwide branded search demand. Brand figures can include other apparel and period-care products. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Share of Search among period underwear brands worldwide, by month

Share of Search by month for Knix, Modibodi, Thinx, Saalt, WUKA, Aisle. The figures are in the table below the chart.

View monthly share of search table
MonthKnixModibodiThinxSaaltWUKAAisle
Oct 202550.9%23.2%10.3%7.7%6.4%1.6%
Nov 202555.7%21.1%9.5%6.7%5.3%1.7%
Dec 202552.3%20.5%12.3%8.9%4.5%1.4%
Jan 202649%20.8%15.5%7.4%5.9%1.4%
Feb 202647.2%16.4%22.5%7%5.5%1.4%
Mar 202652.6%15.2%16.1%8.3%6.3%1.5%
Apr 202653.6%15.3%16.5%7.9%5.3%1.4%
May 202644.7%22%17.7%8.4%5.6%1.6%
Jun 202647%22.1%16.2%8.3%5.3%1.2%
Jul 202650.4%18.9%14.8%8.8%5.8%1.3%
Aug 202652.6%17.8%9.9%9.7%6.8%3.2%
Sep 2026——————

This month’s ranking, August 2026

  1. 1.Knix

    52.6%

    held 1st · 216K estimated branded searches · -17.7% vs prior month · +2.2 points

  2. 2.Modibodi

    17.8%

    held 2nd · 73.4K estimated branded searches · -25.7% vs prior month · -1.1 points

  3. 3.Thinx

    9.9%

    held 3rd · 40.8K estimated branded searches · -47.2% vs prior month · -4.9 points

  4. 4.Saalt

    9.7%

    held 4th · 40.1K estimated branded searches · -13.2% vs prior month · +0.9 points

  5. 5.WUKA

    6.8%

    held 5th · 27.8K estimated branded searches · -7.3% vs prior month · +1 points

  6. 6.Aisle

    3.2%

    held 6th · 13.1K estimated branded searches · +90.1% vs prior month · +1.9 points

Compare search popularity between leading brands

Which brand is most popular in search among period underwear brands worldwide?

In August 2026, Knix was the most searched among period underwear brands worldwide, with an estimated 216K branded searches and 52.6% estimated Share of Search within this set. Modibodi is in 2nd place, 34.8 percentage points behind at 17.8% Share of Search.

Global period underwear brands, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Knix50.9% → 52.6%55.7%Nov 202544.7%May 20261st
Modibodi23.2% → 17.8%23.2%Oct 202515.2%Mar 20262nd
Thinx10.3% → 9.9%22.5%Feb 20269.5%Nov 20253rd
Saalt7.7% → 9.7%9.7%Aug 20266.7%Nov 20254th
WUKA6.4% → 6.8%6.8%Aug 20264.5%Dec 20255th
Aisle1.6% → 3.2%3.2%Aug 20261.2%Jun 20266th

Each finding as a sentence

  • Across the 11 months ending August 2026, Knix’s estimated Share of Search among period underwear brands worldwide increased from 50.9% to 52.6%.
  • Across the 11 months ending August 2026, Modibodi’s estimated Share of Search among period underwear brands worldwide decreased from 23.2% to 17.8%.
  • Across the 11 months ending August 2026, Saalt’s estimated Share of Search among period underwear brands worldwide increased from 7.7% to 9.7%.
  • Across the 11 months ending August 2026, Aisle’s estimated Share of Search among period underwear brands worldwide increased from 1.6% to 3.2%.
  • Across the 11 months ending August 2026, Knix’s estimated Share of Search among period underwear brands worldwide peaked at 55.7% in November 2025 and was lowest at 44.7% in May 2026.
  • Across the 11 months ending August 2026, Modibodi’s estimated Share of Search among period underwear brands worldwide peaked at 23.2% in October 2025 and was lowest at 15.2% in March 2026.
  • Across the 11 months ending August 2026, Thinx’s estimated Share of Search among period underwear brands worldwide peaked at 22.5% in February 2026 and was lowest at 9.5% in November 2025.
  • Across the 11 months ending August 2026, Saalt’s estimated Share of Search among period underwear brands worldwide peaked at 9.7% in August 2026 and was lowest at 6.7% in November 2025.
  • Across the 11 months ending August 2026, WUKA’s estimated Share of Search among period underwear brands worldwide peaked at 6.8% in August 2026 and was lowest at 4.5% in December 2025.
  • Across the 11 months ending August 2026, Aisle’s estimated Share of Search among period underwear brands worldwide peaked at 3.2% in August 2026 and was lowest at 1.2% in June 2026.
  • Across the 11 months ending August 2026, Thinx and WUKA held steady: their estimated Share of Search among period underwear brands worldwide each moved less than 0.5 percentage points.

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

  1. In August 2026, Knix gained estimated Share of Search among period underwear brands worldwide, from 50.4% to 52.6%.

  2. In August 2026, Aisle gained estimated Share of Search among period underwear brands worldwide, from 1.3% to 3.2%.

  3. In August 2026, WUKA gained estimated Share of Search among period underwear brands worldwide, from 5.8% to 6.8%.

  4. In August 2026, Saalt gained estimated Share of Search among period underwear brands worldwide, from 8.8% to 9.7%.

  5. In August 2026, Thinx lost estimated Share of Search among period underwear brands worldwide, from 14.8% to 9.9%.

  6. In August 2026, Modibodi lost estimated Share of Search among period underwear brands worldwide, from 18.9% to 17.8%.

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