Boy Swim Set Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Boy Swim Set sales on Amazon US totaled 9,150 units in July 2026 (▼ 59.8% vs. the prior month), generating an estimated $187,362 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 51.4% of unit volume and 47.7% of revenue, while a typical listing is priced at $19.75. The keyword itself pulled 2,843 Amazon queries over the same period (▼ 69.3% MoM).
Zooming out to the 12-month window ending July 2026, the boy swim set Top 50 moved 61,150 units and $1,218,328 in cumulative sales — an average of 5,096 units and $101,527 per month. Monthly throughput topped out at 22,750 units in June 2026 and dipped to 750 in October 2025, leaving the latest reading 422.9% higher than August 2025.
Boy Swim Set 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
9.2K
▼ 59.8% MoM
Monthly Revenue 2026/07
$187.4K
▼ 57.0% MoM
Top 10 Market Share 2026/07
51.4%
Boy Swim Set Market Share & Sales Concentration on Amazon US — July 2026
The most-sold boy swim set listing on Amazon US in July 2026 is ASIN B0FHPFXMP2 (Brand: UMELOK), which sold 1,000 units at $19.99 apiece — equal to 10.9% of every unit tracked in this report and 1.7× the volume of the No. 2 listing.
The Top 10 ASINs account for 4,700 units and $89,420 in July 2026 — 51.4% of unit volume and 47.7% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Boy Swim Set' on Amazon
July 2026
Is 51.4% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0FHPFXMP2
UMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit
1K
▼ 80.0%vs. prior month
$15K
latest month
12-month trend
B0F384Z48L
Sylfairy Boys Rash Guard Swim Set with Swim Trunks Bathing Suit Long Sleeve Swim Shirt Quick Dry Swimsuit Kids Swimwear Size 7-16
600
▼ 40.0%vs. prior month
$10.3K
latest month
12-month trend
B0F5WJBBRL
Boys Swim Trunks Compression Liner Swimsuit Shorts fo Kids 2-16Y
500
▼ 37.5%vs. prior month
$6.1K
latest month
12-month trend
B0DN6F971G
Hnyenmcko Baby/Toddler Boy Rash Guard Swimsuit Long Sleeve One Piece Zipper Swimwear Sunsuit Infant Bathing Suit Beachwear
400
▼ 42.9%vs. prior month
$7.1K
latest month
12-month trend
B0FXQXDWVC
westwolf Boys Swim Trunks with Compression Liner Bathing Suit 6-18 Years
400
▼ 60.0%vs. prior month
$10K
latest month
12-month trend
B0GJYWGGTK
WDIRARA Women's Polka Dots 2 Piece Boyshorts Bikini Set Halter Y2K Swimsuit | Graphic Print,Triangle,Boyshort,Cute Bikinis,Boy Short,Bowknot,Colorblock,Bathing Suit
400
▲ 33.3%vs. prior month
$11.3K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Boy Swim Set Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
UMELOK is the best-performing boy swim set brand in July 2026, moving 1,000 units across 1 ASIN for 21.3% of Top 10 volume. westwolf follows with 700 units (14.9%), ahead of Sylfairy on 600 units (12.8%).
Volume is spread across 9 brands, with the top three holding 48.9% 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 $16.99 to $19.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
UMELOK
1 ASIN in Top 10
21.3%
Units
1K
Revenue
$15K
Avg. price
$19.99
B0FHPFXMP2
$19.99·★4.7·914 revsUMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit
Units sold1K
westwolf
2 ASINs in Top 10
14.9%
Units
700
Revenue
$17.6K
Avg. price
$19.99
B0FXQXDWVC
$19.99·★4.7·272 revswestwolf Boys Swim Trunks with Compression Liner Bathing Suit 6-18 Years
Units sold400B0FXQTS2WJ
$19.99·★4.7·272 revswestwolf Boys Swim Trunks with Compression Liner Bathing Suit 6-18 Years
Units sold300
Sylfairy
1 ASIN in Top 10
12.8%
Units
600
Revenue
$10.3K
Avg. price
$16.99
B0F384Z48L
$16.99·★4.7·591 revsSylfairy Boys Rash Guard Swim Set with Swim Trunks Bathing Suit Long Sleeve Swim Shirt Quick Dry Swimsuit Kids Swimwear Size 7-16
Units sold600
Trending Boy Swim Set 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: B0GJYWGGTK booked 400 units at $21.59, with ▲ 33.3% 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.
B0GJYWGGTK
WDIRARA Women's Polka Dots 2 Piece Boyshorts Bikini Set Halter Y2K Swimsuit | Graphic Print,Triangle,Boyshort,Cute Bikinis,Boy Short,Bowknot,Colorblock,Bathing Suit
Price
$21.59
Rating
3.7
Reviews
162
Latest month sales
B0BLZ6HVCY
maamgic Boys Swim Trunks with Compression Liner Toddler Stretch Swim Shorts
Price
$26.99
Rating
4.7
Reviews
2.5K
Latest month sales
B0D2X1H1VW
upandfast Baby/Toddler Swimsuit UPF 50+ Sun Protection One Piece Zipper Bathing Suit with Sun Hat Infant Beach Swimwear
Unlock to view ASIN details and product titles
Price
$19.98
Rating
4.8
Reviews
6.7K
Latest month sales
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