Kids Swimsuits Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Kids Swimsuits sales on Amazon US totaled 19,650 units in July 2026 (▼ 32.5% vs. the prior month), generating an estimated $325,358 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 46.8% of unit volume and 42.6% of revenue, while a typical listing is priced at $17.65. The keyword itself pulled 5,210 Amazon queries over the same period (▼ 77.8% MoM).
Zooming out to the 12-month window ending July 2026, the kids swimsuits Top 50 moved 98,450 units and $1,711,768 in cumulative sales — an average of 8,204 units and $142,647 per month. Monthly throughput topped out at 29,100 units in June 2026 and dipped to 1,800 in October 2025, leaving the latest reading 410.4% higher than August 2025.
Kids Swimsuits 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
19.6K
▼ 32.5% MoM
Monthly Revenue 2026/07
$325.4K
▼ 33.6% MoM
Top 10 Market Share 2026/07
46.8%
Kids Swimsuits Market Share & Sales Concentration on Amazon US — July 2026
The most-sold kids swimsuits listing on Amazon US in July 2026 is ASIN B0C3VDGKFP (Brand: OlyPegic), which sold 2,000 units at $9.99 apiece — equal to 10.2% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 9,200 units and $138,546 in July 2026 — 46.8% of unit volume and 42.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Kids Swimsuits' on Amazon
July 2026









Is 46.8% Top 10 share highly concentrated?
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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

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

B095C8YLR4
Little Girls' Summer Swimwear Two Piece Boyshort Tankini Kids Swimsuit
1K
▲ 0.0%vs. prior month
$14.6K
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

B0DZP6C6L5
Girls One-Piece Swimsuit Bathing Suit with Cover Ups Size 7-16
900
▼ 10.0%vs. prior month
$16.1K
latest month
12-month trend

B0B8MX8FQT
LUOUSE Swimwear for Girls Swimsuits Quick Dry Cross-Back Adjustable Strap Bathing Suit for Kids 2-13 Years
800
▼ 20.0%vs. prior month
$7.2K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Kids Swimsuits Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
OlyPegic is the best-performing kids swimsuits brand in July 2026, moving 2,000 units across 1 ASIN for 21.7% of Top 10 volume. UMELOK follows with 1,600 units (17.4%), ahead of Sylfairy on 1,300 units (14.1%).
Volume is spread across 8 brands, with the top three holding 53.3% 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 $9.99 to $18.49, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
OlyPegic
1 ASIN in Top 10
21.7%
Units
2K
Revenue
$26K
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 sold2K
UMELOK
2 ASINs in Top 10
17.4%
Units
1.6K
Revenue
$20.8K
Avg. price
$17.49

B0FHP4TJ9F
$19.99·★4.7·884 revsUMELOK Boys Swim Trunks with Compression Liner Toddler Bathing Suit | 2 in 1
Units sold1K
B09T2WM8CN
$14.99·★4.7·1.9K revsUMELOK Toddler and Little Girls Rash Guard Sets with Bikini Bottom Swimwear
Units sold600
Sylfairy
2 ASINs in Top 10
14.1%
Units
1.3K
Revenue
$22.3K
Avg. price
$18.49

B0F384Q57L
$19.99·★4.7·582 revsSylfairy Boys Rash Guard Swim Set with Swim Trunks Bathing Suit Long Sleeve Swim Shirt Quick Dry Swimsuit Kids Swimwear Size 7-16
Units sold700
B0F384Z48L
$16.99·★4.7·582 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 Kids Swimsuits 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: B0DQKRT3YF booked 600 units at $19.99, with ▼ 25.0% MoM change. On the growth side, B0GT4JVW3F leads positive momentum with ▲ 300.0% MoM growth on 200 units, with B0F83HN7Z5 close behind at ▲ 100.0% MoM on 200 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.

B0DQKRT3YF
Disney Swimsuits for Girls One Piece Bathing Suits UPF 50 Swimwear 2-13Y | Officially Licensed, UPF50 Sun Protection, Quick Dry, Ruffle One Shoulder, Summer Swimwear for Toddler Girls
Price
$19.99
Rating
4.8
Reviews
706
Latest month sales

B0GT4JVW3F
WASAIGOOD Birthday Swimsuit Girls One Piece Swimsuits Kids Bathing Suit Toddler 1st 2nd 3rd 4th 5th 6th Birthday Girl Outfit
Price
$16.98
Rating
3.4
Reviews
42
Latest month sales

B0F83HN7Z5
GALLDEALS Girls Swimsuit 3 Piece Bathing Suits Flounce Ruffle Tankini Set Beach Swimwear with Cover Ups Skirt for 3-10 Years
Unlock to view ASIN details and product titles
Price
$22.79
Rating
4.8
Reviews
204
Latest month sales
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