Boys Swimming Trunks Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Boys Swimming Trunks sales on Amazon US totaled 19,100 units in July 2026 (▼ 39.6% vs. the prior month), generating an estimated $318,257 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 49.7% of unit volume and 41.6% of revenue, while a typical listing is priced at $17.33. The keyword itself pulled 2,415 Amazon queries over the same period (▼ 63.3% MoM).
Zooming out to the 12-month window ending July 2026, the boys swimming trunks Top 50 moved 94,850 units and $1,617,303 in cumulative sales — an average of 7,904 units and $134,775 per month. Monthly throughput topped out at 31,450 units in June 2026 and dipped to 1,350 in October 2025, leaving the latest reading 430.6% higher than August 2025.
Boys Swimming Trunks 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
19.1K
▼ 39.6% MoM
Monthly Revenue 2026/07
$318.3K
▼ 38.8% MoM
Top 10 Market Share 2026/07
49.7%
Boys Swimming Trunks Market Share & Sales Concentration on Amazon US — July 2026
The most-sold boys swimming trunks listing on Amazon US in July 2026 is ASIN B0C3VDGKFP (Brand: OlyPegic), which sold 2,000 units at $9.99 apiece — equal to 10.5% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 9,500 units and $132,236 in July 2026 — 49.7% of unit volume and 41.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Boys Swimming Trunks' on Amazon
July 2026
Is 49.7% 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
B0C3VDGKFP
OlyPegic Boys Swim Trunks with Boxer Brief Liner Compression Boy Bathing Suit Quick Dry Beach Swimsuit Toddler Swim Shorts
2K
▼ 33.3%vs. prior month
$26K
latest month
12-month trend
B0FHPFXMP2
UMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit
1K
▼ 80.0%vs. prior month
$15K
latest month
12-month trend
B0FHP4TJ9F
UMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit | 2 in 1
1K
▼ 66.7%vs. prior month
$10K
latest month
12-month trend
B0FFH2R795
Olreco Boys Swim Trunks with Compression Liner Kids Bathing Suit Boys Board Shorts Quick Dry Teen Swimsuit Kids Swim Shorts
1K
▲ 0.0%vs. prior month
$13K
latest month
12-month trend
B0BLZ6P6G2
maamgic Boys Swim Trunks with Compression Liner Toddler Stretch Swim Shorts
1K
▲ 0.0%vs. prior month
$21.3K
latest month
12-month trend
B0G4CL8GWL
OlyPegic Boys Swim Trunks Bathing Suit Boys Swimsuit Swim Shorts Swimwear Quick Dry Swim Trunks with Compression Liner
800
▼ 20.0%vs. prior month
$10.4K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Boys Swimming Trunks Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
OlyPegic is the best-performing boys swimming trunks brand in July 2026, moving 3,500 units across 3 ASINs for 36.8% of Top 10 volume. UMELOK follows with 2,000 units (21.1%), ahead of Sarfel on 1,400 units (14.7%).
With 6 brands splitting the Top 10 and 72.6% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $9.99 to $19.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
OlyPegic
3 ASINs in Top 10
36.8%
Units
3.5K
Revenue
$44.8K
Avg. price
$9.99
B0C3VDGKFP
$9.99·★4.8·991 revsOlyPegic Boys Swim Trunks with Boxer Brief Liner Compression Boy Bathing Suit Quick Dry Beach Swimsuit Toddler Swim Shorts
Units sold2KB0G4CL8GWL
$9.98·★4.8·234 revsOlyPegic Boys Swim Trunks Bathing Suit Boys Swimsuit Swim Shorts Swimwear Quick Dry Swim Trunks with Compression Liner
Units sold800B0DN6RY7FQ
$9.99·★4.6·396 revsOlyPegic Boys Swim Trunks Bathing Suit Boys Swimsuit Swim Shorts Swimwear Quick Dry Swim Trunks Kids Beach Board Shorts
Units sold700
UMELOK
2 ASINs in Top 10
21.1%
Units
2K
Revenue
$25K
Avg. price
$19.99
B0FHPFXMP2
$19.99·★4.7·884 revsUMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit
Units sold1KB0FHP4TJ9F
$19.99·★4.7·884 revsUMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit | 2 in 1
Units sold1K
Sarfel
2 ASINs in Top 10
14.7%
Units
1.4K
Revenue
$17.9K
Avg. price
$9.99
B0D2WDMR8L
$9.99·★4.7·838 revsSarfel Boys Swim Trunks with Compression Liner Kids Swimsuits Boys Bathing Suit Kids Board Shorts Teen Boy Quick Dry Shorts
Units sold800B0D2WF93SR
$9.99·★4.7·838 revsSarfel Boys Swim Trunks with Compression Liner Kids Swimsuits Boys Bathing Suit Kids Board Shorts Teen Boy Quick Dry Shorts
Units sold600
Trending Boys Swimming Trunks 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: B0DN6RY7FQ booked 700 units at $9.99, with ▲ 75.0% MoM change. On the growth side, B0D1GG76RV leads positive momentum with ▲ 100.0% MoM growth on 100 units, with B0F8QHB9KG close behind at ▲ 50.0% MoM on 300 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.
B0DN6RY7FQ
OlyPegic Boys Swim Trunks Bathing Suit Boys Swimsuit Swim Shorts Swimwear Quick Dry Swim Trunks Kids Beach Board Shorts
Price
$9.99
Rating
4.6
Reviews
396
Latest month sales
B0D1GG76RV
IRELIA 2 Pack Boys 2 in 1 Swim Trunks Boxer Brief Liner Compression Swimming Shorts Quick Dry Swimwear
Price
$14.76
Rating
4.7
Reviews
257
Latest month sales
B0F8QHB9KG
Sarfel Boys Swim Trunks with Compression Liner Kids Bathing Suits Boys Board Shorts Quick Dry Teen Swim Trunks Boy Swimsuit
Unlock to view ASIN details and product titles
Price
$9.99
Rating
4.7
Reviews
155
Latest month sales
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