Swim Bra For Under Swim Shirt Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Swim Bra For Under Swim Shirt sales on Amazon US totaled 37,200 units in July 2026 (▲ 16.3% vs. the prior month), generating an estimated $744,467 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 69.9% of unit volume and 64.4% of revenue, while a typical listing is priced at $22.18. The keyword itself pulled 5,876 Amazon queries over the same period (▼ 58.6% MoM).
Zooming out to the 12-month window ending July 2026, the swim bra for under swim shirt Top 50 moved 252,800 units and $5,180,456 in cumulative sales — an average of 21,067 units and $431,705 per month. Monthly throughput topped out at 37,200 units in July 2026 and dipped to 10,350 in December 2025, leaving the latest reading 67.9% higher than August 2025.
Swim Bra For Under Swim Shirt 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
37.2K
▲ 16.3% MoM
Monthly Revenue 2026/07
$744.5K
▲ 5.6% MoM
Top 10 Market Share 2026/07
69.9%
Swim Bra For Under Swim Shirt Market Share & Sales Concentration on Amazon US — July 2026
The most-sold swim bra for under swim shirt listing on Amazon US in July 2026 is ASIN B0FS1DBXTG (Brand: COCOMARTS), which sold 7,000 units at $14.56 apiece — equal to 18.8% of every unit tracked in this report and 1.8× the volume of the No. 2 listing.
The Top 10 ASINs account for 26,000 units and $479,180 in July 2026 — 69.9% of unit volume and 64.4% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Swim Bra For Under Swim Shirt' on Amazon
July 2026
Is 69.9% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0FS1DBXTG
COCOMARTS Jelly Bras for Women No Underwire Scalloped Wireless Push Up Bra
7K
▲ 250.0%vs. prior month
$105.6K
latest month
12-month trend
B0DGFPBV3Y
PoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support
4K
▼ 20.0%vs. prior month
$69.9K
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
B0744M3DF2
Bra Pad Inserts 4 Pairs, Bra Pads Sewn Padded for Sports Bra A/B or C/D,D/E Cup Beige or Black, White Optional
3K
▼ 25.0%vs. prior month
$43.8K
latest month
12-month trend
B0GV3R2C4S
Dandelion Pact Double Sided Sticky Bra Inserts, Invisible Push Up Sticky Bra Pads for Large Breasts, Stick on Bra for Bikini Swimsuits (Medium, Light Beige)
2K
▲ 100.0%vs. prior month
$24.5K
latest month
12-month trend
B088M5Z6ZR
THE GYM PEOPLE Women’s Longline Sports Bra Wirefree Padded Medium Support Yoga Bras Gym Running Workout Tank Tops
2K
vs. prior month
$41.3K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Swim Bra For Under Swim Shirt Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
COCOMARTS is the best-performing swim bra for under swim shirt brand in July 2026, moving 7,000 units across 1 ASIN for 26.9% of Top 10 volume. PoseFree follows with 4,000 units (15.4%), ahead of Tmeefee on 4,000 units (15.4%).
Volume is spread across 10 brands, with the top three holding 57.7% 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 $14.56 to $23.98, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
COCOMARTS
1 ASIN in Top 10
26.9%
Units
7K
Revenue
$105.6K
Avg. price
$14.56
B0FS1DBXTG
$14.56·★4.2·4.9K revsCOCOMARTS Jelly Bras for Women No Underwire Scalloped Wireless Push Up Bra
Units sold7K
PoseFree
1 ASIN in Top 10
15.4%
Units
4K
Revenue
$69.9K
Avg. price
$16.99
B0DGFPBV3Y
$16.99·★4.0·5.6K revsPoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support
Units sold4K
Tmeefee
1 ASIN in Top 10
15.4%
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
Trending Swim Bra For Under Swim Shirt 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, one ASIN forced its way in: B088M5Z6ZR booked 2K units at $18.99. On the growth side, B0FS1DBXTG leads positive momentum with ▲ 250.0% MoM growth on 7K units, with B0FJ8BWQWZ close behind at ▲ 200.0% MoM on 600 units.
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.
B088M5Z6ZR
THE GYM PEOPLE Women’s Longline Sports Bra Wirefree Padded Medium Support Yoga Bras Gym Running Workout Tank Tops
Price
$18.99
Rating
4.3
Reviews
50.2K
Latest month sales
B0FS1DBXTG
COCOMARTS Jelly Bras for Women No Underwire Scalloped Wireless Push Up Bra
Price
$14.56
Rating
4.2
Reviews
4.9K
Latest month sales
B0FJ8BWQWZ
Double Sided Adhesive Bra Inserts - Breathable Push Up Pads for Sports Bra & Swimsuit + Reusable Silicone Sticky Bra
Unlock to view ASIN details and product titles
Price
$25.99
Rating
4.8
Reviews
216
Latest month sales
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