Period Bathing Suit Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Period Bathing Suit sales on Amazon US totaled 23,300 units in July 2026 (▼ 15.4% vs. the prior month), generating an estimated $597,002 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 45.9% of unit volume and 43.5% of revenue, while a typical listing is priced at $25.00. The keyword itself pulled 5,076 Amazon queries over the same period (▼ 63.4% MoM).
Zooming out to the 12-month window ending July 2026, the period bathing suit Top 50 moved 91,550 units and $2,490,482 in cumulative sales — an average of 7,629 units and $207,540 per month. Monthly throughput topped out at 27,550 units in June 2026 and dipped to 1,750 in October 2025, leaving the latest reading 180.7% higher than August 2025.
Period Bathing Suit 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
23.3K
▼ 15.4% MoM
Monthly Revenue 2026/07
$597K
▼ 21.0% MoM
Top 10 Market Share 2026/07
45.9%
Period Bathing Suit Market Share & Sales Concentration on Amazon US — July 2026
The most-sold period bathing suit listing on Amazon US in July 2026 is ASIN B0D39Z6BZR (Brand: Jayloa), which sold 2,000 units at $17.69 apiece — equal to 8.6% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 10,700 units and $259,454 in July 2026 — 45.9% of unit volume and 43.5% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Period Bathing Suit' on Amazon
July 2026
Is 45.9% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0D39Z6BZR
Period Swim Bottoms Leakproof Period Swimwear for Women and Teens Menstrual Swimwear Period Underwear for Swimming
2K
▲ 100.0%vs. prior month
$34.8K
latest month
12-month trend
B0734KDH62
baleaf Women's Athletic Training Adjustable Strap One Piece Swimsuit
1K
▼ 50.0%vs. prior month
$33K
latest month
12-month trend
B0BN7XV7D4
Period Swimwear Leakproof Bikini Swim Bottoms for Teens Girls Women
1K
▼ 66.7%vs. prior month
$19.5K
latest month
12-month trend
B0BPM2ZGQ3
Heavy Flow Period Swimwear for Teens & Women
1K
▲ 233.3%vs. prior month
$30.9K
latest month
12-month trend
B0BQXKS62Z
OVRUNS Period Swimwear Leakproof Swim Bikini Bottoms for Teens,Girls,Women
1K
▼ 50.0%vs. prior month
$23.5K
latest month
12-month trend
B0CB36TWNG
Beautikini Period Swimwear Bottoms High Waisted Full Coverage Swim Shorts
1K
▲ 0.0%vs. prior month
$35.6K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Period Bathing Suit Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Jayloa is the best-performing period bathing suit brand in July 2026, moving 2,000 units across 1 ASIN for 18.7% of Top 10 volume. Beautikini follows with 2,000 units (18.7%), ahead of Leovqn on 1,900 units (17.8%).
Volume is spread across 8 brands, with the top three holding 55.1% 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 $12.49 to $28.49, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Jayloa
1 ASIN in Top 10
18.7%
Units
2K
Revenue
$34.8K
Avg. price
$17.69
B0D39Z6BZR
$17.69·★4.2·290 revsPeriod Swim Bottoms Leakproof Period Swimwear for Women and Teens Menstrual Swimwear Period Underwear for Swimming
Units sold2K
Beautikini
2 ASINs in Top 10
18.7%
Units
2K
Revenue
$68.4K
Avg. price
$28.49
B0CB36TWNG
$28.99·★4.4·934 revsBeautikini Period Swimwear Bottoms High Waisted Full Coverage Swim Shorts
Units sold1KB0C5D4CXF2
$27.99·★4.4·599 revsBeautikini Period Swimwear Mid Waist Bathing Suits Swim Bikini Bottoms
Units sold1K
Leovqn
2 ASINs in Top 10
17.8%
Units
1.9K
Revenue
$33.9K
Avg. price
$12.49
B0BN7XV7D4
$14.99·★4.1·2K revsPeriod Swimwear Leakproof Bikini Swim Bottoms for Teens Girls Women
Units sold1KB0BQ2QSW5Z
$9.99·★4.2·1K revsPeriod Swimwear Leakproof Menstrual Bikini Waterproof Bottom UPF 50+ Swim Brief Light Flow - Teens Girls Women
Units sold900
Trending Period Bathing Suit 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, 2 ASINs forced its way in: B0BPM2ZGQ3 booked 1K units at $30.95, with ▲ 233.3% MoM change. On the growth side, B0D3B4P18V leads positive momentum with ▲ 600.0% MoM growth on 700 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.
B0BPM2ZGQ3
Heavy Flow Period Swimwear for Teens & Women
Price
$30.95
Rating
4.4
Reviews
1.1K
Latest month sales
B0GTQWM5N7
Period Swimwear for Teens Women Swimsuit Bikini Bottom Bathing Suit Menstrual Swim Bottoms Underwear
Price
$14.99
Rating
4.2
Reviews
107
Latest month sales
B0D3B4P18V
Period Swim Bottoms Leakproof High Waisted Period Swimwear for Women Teens Full Coverage Heavy Flow Menstrual Swimwear
Unlock to view ASIN details and product titles
Price
$17.69
Rating
4.1
Reviews
221
Latest month sales
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