Size 5 Diapers Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Size 5 Diapers sales on Amazon US totaled 195,700 units in July 2026 (▼ 8.6% vs. the prior month), generating an estimated $7,978,404 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 49.1% of unit volume and 51.2% of revenue, while a typical listing is priced at $39.70. The keyword itself pulled 58,624 Amazon queries over the same period (▲ 3.2% MoM).
Zooming out to the 12-month window ending July 2026, the size 5 diapers Top 50 moved 2,101,350 units and $91,438,170 in cumulative sales — an average of 175,113 units and $7,619,847 per month. Monthly throughput topped out at 214,200 units in June 2026 and dipped to 119,700 in May 2026, leaving the latest reading 6.8% higher than August 2025.
Size 5 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
195.7K
▼ 8.6% MoM
Monthly Revenue 2026/07
$8M
▼ 11.3% MoM
Top 10 Market Share 2026/07
49.1%
Size 5 Diapers Market Share & Sales Concentration on Amazon US — July 2026
The most-sold size 5 diapers listing on Amazon US in July 2026 is ASIN B010OVZO64 (Brand: Pampers), which sold 20,000 units at $49.77 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 96,000 units and $4,083,230 in July 2026 — 49.1% of unit volume and 51.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Size 5 Diapers' on Amazon
July 2026
Is 49.1% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B010OVZO64
Pampers Swaddlers Diapers, Size 5 (20-37 lbs), 132 Count, Fragrance Free, Hypoallergenic, Absorbent, Pediatrician Recommended, Skin Safe
20K
▲ 0.0%vs. prior month
$995.4K
latest month
12-month trend
B08PX2V7PG
Pampers Diapers - Cruisers 360 - Size 5, 128 Count, Babyproof up to 100% Leakproof Pull-On Diaper
10K
▼ 50.0%vs. prior month
$497.7K
latest month
12-month trend
B07SRBR7HW
Pampers Swaddlers Diapers, Size 5 (20-37 lbs), 104 Count, Hypoallergenic, Absorbent, Keeps Baby Dry and Comfortable, Skin Safe Disposable Baby Diaper
10K
▲ 0.0%vs. prior month
$449.9K
latest month
12-month trend
B0DKYWMHDX
Huggies Little Movers Diapers Size 5, 132 Count (2 Packs of 66)
10K
▲ 0.0%vs. prior month
$539.3K
latest month
12-month trend
B078WBDSBF
Pampers Training Pants - Easy Ups Boys & Girls Bluey - Size 4T-5T, 104 Count, Children's Potty Underwear (Packaging May Vary)
9K
▼ 10.0%vs. prior month
$440.6K
latest month
12-month trend
B08SNLW94K
Pampers Training Pants - Easy Ups Boys & Girls Bluey - Size 5T-6T, 84 Count, Children's Potty Underwear (Packaging May Vary)
9K
▲ 0.0%vs. prior month
$443.4K
latest month
12-month trend
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Best Size 5 Diapers Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Pampers is the best-performing size 5 diapers brand in July 2026, moving 64,000 units across 6 ASINs for 66.7% of Top 10 volume. HUGGIES follows with 17,000 units (17.7%), ahead of Hello Bello on 8,000 units (8.3%).
With 4 brands splitting the Top 10 and 92.7% 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 $13.99 to $45.18, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Pampers
6 ASINs in Top 10
66.7%
Units
64K
Revenue
$3M
Avg. price
$45.18
B010OVZO64
$49.77·★4.8·129.6K revsPampers Swaddlers Diapers, Size 5 (20-37 lbs), 132 Count, Fragrance Free, Hypoallergenic, Absorbent, Pediatrician Recommended, Skin Safe
Units sold20KB08PX2V7PG
$49.77·★4.7·27.7K revsPampers Diapers - Cruisers 360 - Size 5, 128 Count, Babyproof up to 100% Leakproof Pull-On Diaper
Units sold10KB07SRBR7HW
$44.99·★4.8·129.6K revsPampers Swaddlers Diapers, Size 5 (20-37 lbs), 104 Count, Hypoallergenic, Absorbent, Keeps Baby Dry and Comfortable, Skin Safe Disposable Baby Diaper
Units sold10KB078WBDSBF
$49.27·★4.7·46.2K revsPampers Training Pants - Easy Ups Boys & Girls Bluey - Size 4T-5T, 104 Count, Children's Potty Underwear (Packaging May Vary)
Units sold9KB08SNLW94K
$49.27·★4.7·46.2K revsPampers Training Pants - Easy Ups Boys & Girls Bluey - Size 5T-6T, 84 Count, Children's Potty Underwear (Packaging May Vary)
Units sold9KB07DCB7SQD
$27.99·★4.7·29.6K revsPampers ZZZ Overnight Diapers, Size 5 (27+ lbs), 50 Count, Nighttime Protection Disposable Baby Diaper, Night Time Leak and Skin Protection
Units sold6K
HUGGIES
2 ASINs in Top 10
17.7%
Units
17K
Revenue
$738.7K
Avg. price
$40.24
B0DKYWMHDX
$51.99·★4.8·46.8K revsHuggies Little Movers Diapers Size 5, 132 Count (2 Packs of 66)
Units sold10KB08QS2KQ3F
$28.49·★4.7·28.9K revsHUGGIES Overnites Diapers Size 5, 50 Count
Units sold7K
Hello Bello
1 ASIN in Top 10
8.3%
Units
8K
Revenue
$111.9K
Avg. price
$13.99
B0966DJR57
$13.99·★4.6·1.3K revsHello Bello Premium Swim Diapers, Size M (18-34 lbs), Cute Extra-Bright Lobster Designs, 18 Count Jumbo Pack
Units sold8K
Trending Size 5 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. Specifically, one ASIN forced its way in: B07DCB7SQD booked 6K units at $27.99, with ▲ 20.0% MoM change. On the growth side, B07H3P525Q leads positive momentum with ▲ 200.0% MoM growth on 3K units, with B00R4HZ3A4 close behind at ▲ 100.0% MoM on 2K 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.
B07DCB7SQD
Pampers ZZZ Overnight Diapers, Size 5 (27+ lbs), 50 Count, Nighttime Protection Disposable Baby Diaper, Night Time Leak and Skin Protection
Price
$27.99
Rating
4.7
Reviews
29.6K
Latest month sales
B07H3P525Q
Pampers Diapers - Baby Dry - Size 5, 164 Count, Absorbent Disposable Infant Diaper (Packaging May Vary)
Price
$49.77
Rating
4.7
Reviews
96.7K
Latest month sales
B00R4HZ3A4
Pampers Diapers - Baby Dry - Size 6, 21 Count, Absorbent Disposable Infant Diaper (Packaging May Vary)
Unlock to view ASIN details and product titles
Price
$9.97
Rating
4.7
Reviews
1.3K
Latest month sales
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