Swim Cap Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Swim Cap sales on Amazon US totaled 90,000 units in July 2026 (▼ 0.1% vs. the prior month), generating an estimated $1,038,678 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 56.7% of unit volume and 53.2% of revenue, while a typical listing is priced at $12.08. The keyword itself pulled 88,022 Amazon queries over the same period (▼ 44.5% MoM).
Zooming out to the 12-month window ending July 2026, the swim cap Top 50 moved 629,200 units and $7,063,973 in cumulative sales — an average of 52,433 units and $588,664 per month. Monthly throughput topped out at 90,100 units in June 2026 and dipped to 29,000 in December 2025, leaving the latest reading 25.5% higher than August 2025.
Swim Cap 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
90K
▼ 0.1% MoM
Monthly Revenue 2026/07
$1M
▼ 1.9% MoM
Top 10 Market Share 2026/07
56.7%
Swim Cap Market Share & Sales Concentration on Amazon US — July 2026
The most-sold swim cap listing on Amazon US in July 2026 is ASIN B09ZTRP3SH, which sold 20,000 units at $9.98 apiece — equal to 22.2% of every unit tracked in this report and 3.3× the volume of the No. 2 listing.
The Top 10 ASINs account for 51,000 units and $552,750 in July 2026 — 56.7% of unit volume and 53.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Swim Cap' on Amazon
July 2026
Is 56.7% 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
B09ZTRP3SH
Swimming Ear Plugs for Adults,3 Pairs Waterproof Reusable Silicone Swim Earplugs for Swimming Surfing Snorkeling Showering and Water Pool,Beach,Ocean (Adults & Teens 14+)
20K
▲ 0.0%vs. prior month
$188K
latest month
12-month trend
B00070QEAS
Speedo Swim Cap Silicone
6K
▼ 14.3%vs. prior month
$84.3K
latest month
12-month trend
B0D2HD19DT
2pcs High Elasticity Silicone Swim Cap for Women and Men, Comfortable Non-Slip Swimming Caps for Long and Short Hair, Durable Waterproof Swim Hats for Adults, Keep Hair Dry
5K
▲ 66.7%vs. prior month
$50K
latest month
12-month trend
B00DGGNPJ8
TYR Adult Long Hair Swim Cap - Wrinkle-Free Silicone Athletic Headwear | Long Hair Accommodation | 100% Silicone Construction | Wrinkle-Free Hydrodynamic Fit | Contour Cut Edges
4K
▲ 33.3%vs. prior month
$52.6K
latest month
12-month trend
B000I1Q4VU
TYR Adult Latex Swim Cap - Pool Training Swimming Headwear
3K
▲ 200.0%vs. prior month
$14.9K
latest month
12-month trend
B0CWNR7KDM
Extra Large Swim Cap - Swim Cap for Long Hair, Dreadlocks, Weaves, Hair Extensions, Braids, Curls & Afros - Silicone Swimming Cap for Women & Men, Keep Hair Dry
3K
vs. prior month
$29.9K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Swim Cap Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Speedo is the best-performing swim cap brand in July 2026, moving 8,000 units across 2 ASINs for 25.8% of Top 10 volume. TYR follows with 7,000 units (22.6%), ahead of Dizokizo on 5,000 units (16.1%).
With 7 brands splitting the Top 10 and 64.5% 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 $9.08 to $13.41, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Speedo
2 ASINs in Top 10
25.8%
Units
8K
Revenue
$111.3K
Avg. price
$13.41
B00070QEAS
$12.50·★4.2·30.2K revsSpeedo Swim Cap Silicone
Units sold6KB00070QEDA
$14.31·★4.2·30.2K revsSpeedo Swim Cap Silicone
Units sold2K
TYR
2 ASINs in Top 10
22.6%
Units
7K
Revenue
$67.5K
Avg. price
$9.08
B00DGGNPJ8
$13.20·★4.3·6.1K revsTYR Adult Long Hair Swim Cap - Wrinkle-Free Silicone Athletic Headwear | Long Hair Accommodation | 100% Silicone Construction | Wrinkle-Free Hydrodynamic Fit | Contour Cut Edges
Units sold4KB000I1Q4VU
$4.97·★4.1·8.4K revsTYR Adult Latex Swim Cap - Pool Training Swimming Headwear
Units sold3K
Dizokizo
1 ASIN in Top 10
16.1%
Units
5K
Revenue
$50K
Avg. price
$9.99
B0D2HD19DT
$9.99·★4.1·789 revs2pcs High Elasticity Silicone Swim Cap for Women and Men, Comfortable Non-Slip Swimming Caps for Long and Short Hair, Durable Waterproof Swim Hats for Adults, Keep Hair Dry
Units sold5K
Trending Swim Cap 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: B000I1Q4VU booked 3K units at $4.97, with ▲ 200.0% 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.
B000I1Q4VU
TYR Adult Latex Swim Cap - Pool Training Swimming Headwear
Price
$4.97
Rating
4.1
Reviews
8.4K
Latest month sales
B0CWNR7KDM
Extra Large Swim Cap - Swim Cap for Long Hair, Dreadlocks, Weaves, Hair Extensions, Braids, Curls & Afros - Silicone Swimming Cap for Women & Men, Keep Hair Dry
Price
$9.97
Rating
4.1
Reviews
2.5K
Latest month sales
B0DXBSRKBB
2 Pack Swim Cap for Women Men Adult, Silicone Swimming Caps for Short Long Hair, Waterproof Swim Hats Bathing Caps to Keep Hair Dry with Nose Clip and Earplugs
Unlock to view ASIN details and product titles
Price
$13.98
Rating
4.0
Reviews
580
Latest month sales
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