Cotton Sports Bra Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Cotton Sports Bra sales on Amazon US totaled 51,900 units in July 2026 (▼ 15.6% vs. the prior month), generating an estimated $1,095,345 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 44.3% of unit volume and 45.2% of revenue, while a typical listing is priced at $20.30. The keyword itself pulled 12,213 Amazon queries over the same period (▼ 13.7% MoM).
Zooming out to the 12-month window ending July 2026, the cotton sports bra Top 50 moved 472,600 units and $9,854,712 in cumulative sales — an average of 39,383 units and $821,226 per month. Monthly throughput topped out at 61,500 units in June 2026 and dipped to 23,500 in May 2026, leaving the latest reading 5.7% higher than August 2025.
Cotton Sports Bra Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
51.9K
▼ 15.6% MoM
Monthly Revenue 2026/07
$1.1M
▼ 15.1% MoM
Top 10 Market Share 2026/07
44.3%
Cotton Sports Bra Market Share & Sales Concentration on Amazon US — July 2026
The most-sold cotton sports bra listing on Amazon US in July 2026 is ASIN B0B6V1J8MW (Brand: Herepai), which sold 4,000 units at $18.99 apiece — equal to 7.7% of every unit tracked in this report.
The Top 10 ASINs account for 23,000 units and $494,890 in July 2026 — 44.3% of unit volume and 45.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Cotton Sports Bra' on Amazon
July 2026
Is 44.3% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B0B6V1J8MW
Herepai Big Girls' Adjustable Training Bra Cotton Bras Wireless Light Padded 10-16 Years
4K
▲ 33.3%vs. prior month
$76K
latest month
12-month trend
B0FFVYHRKT
Adjustable Sports Bras for Women High Support, Padded Racerback Bra
4K
▼ 20.0%vs. prior month
$108.3K
latest month
12-month trend
B06XY7DBGT
Popular Cotton Girls Training Bra - Crop Cami Training Bras for Girls with Adjustable Straps. Cotton Bra Pack.
3K
▲ 0.0%vs. prior month
$60.1K
latest month
12-month trend
B07JG64N8W
Momcozy Hands Free Pumping & Nursing Bra, Adjustable Cotton Breast Pump Bra | Hands-Free Pump Hold, One-Step Nursing Clasp, Keeps Flanges Secure, 2 Nursing Pads Included
3K
▼ 25.0%vs. prior month
$60K
latest month
12-month trend
B09XN322QZ
Hanes Women's String Bralette Pack, 3-Pack, Cotton Sports Bralette Bras for Women, Solid or Assorted Wireless Bras
2K
▼ 50.0%vs. prior month
$29.8K
latest month
12-month trend
B08MZGXR92
Suekaphin Nursing Bra 5pack Wireless V Neck Maternity Nursing Bra Bralette Low Cut Sleeping Breastfeeding with Extenders
2K
▲ 100.0%vs. prior month
$40K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Cotton Sports Bra Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Herepai is the best-performing cotton sports bra brand in July 2026, moving 4,000 units across 1 ASIN for 17.4% of Top 10 volume. Tmeefee follows with 4,000 units (17.4%), ahead of Popular on 4,000 units (17.4%).
Volume is spread across 9 brands, with the top three holding 52.2% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $18.99 to $23.98, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Herepai
1 ASIN in Top 10
17.4%
Units
4K
Revenue
$76K
Avg. price
$18.99
B0B6V1J8MW
$18.99·★4.5·1K revsHerepai Big Girls' Adjustable Training Bra Cotton Bras Wireless Light Padded 10-16 Years
Units sold4K
Tmeefee
1 ASIN in Top 10
17.4%
Units
4K
Revenue
$108.3K
Avg. price
$23.98
B0FFVYHRKT
$23.98·★4.3·3K revsAdjustable Sports Bras for Women High Support, Padded Racerback Bra
Units sold4K
Popular
2 ASINs in Top 10
17.4%
Units
4K
Revenue
$79.1K
Avg. price
$21.99
B06XY7DBGT
$24.99·★4.6·7.3K revsPopular Cotton Girls Training Bra - Crop Cami Training Bras for Girls with Adjustable Straps. Cotton Bra Pack.
Units sold3KB06XYBRDLZ
$18.99·★4.6·7.3K revsPopular Cotton Girls Training Bra - Crop Cami Training Bras for Girls with Adjustable Straps. Cotton Bra Pack.
Units sold1K
Trending Cotton Sports Bra Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, 3 ASINs forced its way in: B08MZGXR92 booked 2K units at $19.99, with ▲ 100.0% MoM change.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B08MZGXR92
Suekaphin Nursing Bra 5pack Wireless V Neck Maternity Nursing Bra Bralette Low Cut Sleeping Breastfeeding with Extenders
Price
$19.99
Rating
4.3
Reviews
2.3K
Latest month sales
B06XYBRDLZ
Popular Cotton Girls Training Bra - Crop Cami Training Bras for Girls with Adjustable Straps. Cotton Bra Pack.
Price
$18.99
Rating
4.6
Reviews
7.3K
Latest month sales
B088LSKQ38
THE GYM PEOPLE Women’s Longline Sports Bra Wirefree Padded Medium Support Yoga Bras Gym Running Workout Tank Tops
Unlock to view ASIN details and product titles
Price
$18.99
Rating
4.3
Reviews
50.2K
Latest month sales
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