Size 5 Swim Diapers Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Size 5 Swim Diapers sales on Amazon US totaled 261,450 units in July 2026 (▼ 22.7% vs. the prior month), generating an estimated $6,349,940 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 57.4% of unit volume and 54.8% of revenue, while a typical listing is priced at $26.88. The keyword itself pulled 5,154 Amazon queries over the same period (▼ 53.5% MoM).
Zooming out to the 12-month window ending July 2026, the size 5 swim diapers Top 50 moved 2,105,150 units and $66,407,433 in cumulative sales — an average of 175,429 units and $5,533,953 per month. Monthly throughput topped out at 338,100 units in June 2026 and dipped to 125,150 in December 2025, leaving the latest reading 46.3% higher than August 2025.
Size 5 Swim Diapers 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
261.4K
▼ 22.7% MoM
Monthly Revenue 2026/07
$6.3M
▼ 19.5% MoM
Top 10 Market Share 2026/07
57.4%
Size 5 Swim Diapers Market Share & Sales Concentration on Amazon US — July 2026
The most-sold size 5 swim diapers listing on Amazon US in July 2026 is ASIN B0795WF49L (Brand: Pampers), which sold 30,000 units at $9.97 apiece — equal to 11.5% of every unit tracked in this report.
The Top 10 ASINs account for 150,000 units and $3,479,700 in July 2026 — 57.4% of unit volume and 54.8% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Size 5 Swim Diapers' on Amazon
July 2026
Is 57.4% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B0795WF49L
Pampers Swim Diapers - Splashers - Size 4, 18 Count, Gap-Free Disposable Baby Swimming Pants
30K
▼ 25.0%vs. prior month
$299.1K
latest month
12-month trend
B0795W29GC
Pampers Splashers Swim Diapers, Size 5, 17 Count, Disposable Swim Diapers, Contains Mess, No Swell
30K
▲ 0.0%vs. prior month
$299.1K
latest month
12-month trend
B010OVZO64
Pampers Swaddlers Baby Diapers, Size 5, 132 Count
20K
▲ 0.0%vs. prior month
$995.4K
latest month
12-month trend
B00394DQGO
Huggies Little Swimmers Swim Diapers Size 5-6, 17 Count
10K
▼ 50.0%vs. prior month
$99.9K
latest month
12-month trend
B07961T2MS
Pampers Swim Diapers - Splashers - Size 2-3, 20 Count, Gap-Free Disposable Baby Swimming Pants
10K
▼ 66.7%vs. prior month
$99.7K
latest month
12-month trend
B07SRBR7HW
Pampers Swaddlers Baby Diapers, Size 5, 104 Count
10K
▲ 0.0%vs. prior month
$449.9K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Size 5 Swim Diapers Brands on Amazon US — Top 2 Brand Sales Concentration (July 2026)
Pampers is the best-performing size 5 swim diapers brand in July 2026, moving 120,000 units across 7 ASINs for 80.0% of Top 10 volume. HUGGIES follows with 30,000 units (20.0%).
With 2 brands splitting the Top 10 and 100.0% 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 $23.99 to $26.34, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Pampers
7 ASINs in Top 10
80.0%
Units
120K
Revenue
$2.7M
Avg. price
$26.34
B0795WF49L
$9.97·★4.7·31.5K revsPampers Swim Diapers - Splashers - Size 4, 18 Count, Gap-Free Disposable Baby Swimming Pants
Units sold30KB0795W29GC
$9.97·★4.7·31.5K revsPampers Splashers Swim Diapers, Size 5, 17 Count, Disposable Swim Diapers, Contains Mess, No Swell
Units sold30KB010OVZO64
$49.77·★4.8·129.5K revsPampers Swaddlers Baby Diapers, Size 5, 132 Count
Units sold20KB07961T2MS
$9.97·★4.7·31.5K revsPampers Swim Diapers - Splashers - Size 2-3, 20 Count, Gap-Free Disposable Baby Swimming Pants
Units sold10KB07SRBR7HW
$44.99·★4.8·129.5K revsPampers Swaddlers Baby Diapers, Size 5, 104 Count
Units sold10KB08PX2V7PG
$49.77·★4.7·27.6K revsPampers Diapers - Cruisers 360° - Size 5, 128 Count, up to 100% Leakproof Pull-On Diaper for Active Babies
Units sold10KB0GMS6LJ93
$9.97·★4.7·31.5K revsPampers Splashers Swim Diapers, Size 6+, 15 Count, Disposable Swim Diapers, Contains Mess, No Swell
Units sold10K
HUGGIES
3 ASINs in Top 10
20.0%
Units
30K
Revenue
$739.1K
Avg. price
$23.99
B00394DQGO
$9.99·★4.8·3.7K revsHuggies Little Swimmers Swim Diapers Size 5-6, 17 Count
Units sold10KB0DKYWMHDX
$51.99·★4.8·16.9K revsHUGGIES Little Movers Diapers Size 5, 132 Count (2 Packs of 66) | Double Grip Strips, Blowout Protection, Secure Flexible Fit, Up to 12-Hour Protection, Dry Touch Liner, Wetness Indicator
Units sold10KB00394DQGE
$9.99·★4.8·2.7K revsHUGGIES Little Swimmers Swim Diapers Size 4, 18 Count | Doesn’t Swell in Water, Helps Contain Mess, Refastenable Sides, Hypoallergenic & Dermatologist-Tested, Fun Designs
Units sold10K
Trending Size 5 Swim Diapers 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. On the growth side, B08V3P7KL9 leads positive momentum with ▲ 125.0% MoM growth on 900 units, with B094JPRNBY close behind at ▲ 100.0% MoM on 600 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.
B08V3P7KL9
Super Sposie Max Absorbency Overnight Booster Pads, Size 5+, 64 Ct | Extra Protection Day & Night, Hypoallergenic, Soft, & Odor-Neutralizing Incontinence Liners
Price
$38.99
Rating
4.5
Reviews
618
Latest month sales
B094JPRNBY
Amazon Brand - Mama Bear Plush Protection Diapers, Hypoallergenic Premium Disposable Baby Diapers, Gentle on Skin, Size 5, White and Cloud Dreams, 31 Count
Price
$10.72
Rating
3.9
Reviews
4.3K
Latest month sales
B08QRPJ9YM
HUGGIES Little Movers Diapers Size 5, 58 Count | Double Grip Strips, Blowout Protection, Secure Flexible Fit, Up to 12-Hour Protection, Dry Touch Liner, Wetness Indicator
Unlock to view ASIN details and product titles
Price
$28.22
Rating
4.8
Reviews
16.9K
Latest month sales
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