4t Underwear Girl Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
4t Underwear Girl sales on Amazon US totaled 41,100 units in July 2026 (▲ 1.4% vs. the prior month), generating an estimated $590,735 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 48.7% of unit volume and 40.5% of revenue, while a typical listing is priced at $15.11. The keyword itself pulled 17,524 Amazon queries over the same period (▲ 37.0% MoM).
Zooming out to the 12-month window ending July 2026, the 4t underwear girl Top 50 moved 392,200 units and $5,777,837 in cumulative sales — an average of 32,683 units and $481,486 per month. Monthly throughput topped out at 41,100 units in July 2026 and dipped to 19,200 in May 2026, leaving the latest reading 3.3% higher than August 2025.
4t Underwear Girl 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
41.1K
▲ 1.4% MoM
Monthly Revenue 2026/07
$590.7K
▲ 0.4% MoM
Top 10 Market Share 2026/07
48.7%
4t Underwear Girl Market Share & Sales Concentration on Amazon US — July 2026
The most-sold 4t underwear girl listing on Amazon US in July 2026 is ASIN B0797MPF4Y (Brand: Fruit of the Loom), which sold 8,000 units at $11.98 apiece — equal to 19.5% of every unit tracked in this report and 2.7× the volume of the No. 2 listing.
The Top 10 ASINs account for 20,000 units and $239,210 in July 2026 — 48.7% of unit volume and 40.5% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for '4t Underwear Girl' on Amazon
July 2026









Is 48.7% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown

B0797MPF4Y
Fruit of the Loom Toddler Girls' Tag-Free Cotton Underwear
8K
▲ 33.3%vs. prior month
$79.8K
latest month
12-month trend

B01M21DFJD
Fruit of the Loom Toddler Girls' Tag-Free Cotton Underwear
3K
▲ 0.0%vs. prior month
$35.7K
latest month
12-month trend

B07YNXHNYV
Hanes Girls' Hanes Girls' 20-pack Tagless Cotton Brief Panties
2K
▲ 0.0%vs. prior month
$23K
latest month
12-month trend

B0BHX5H5H7
Hanes Toddler Girls' Potty Trainer Brief, Moisture-Wicking Panty, Odor Protection Potty Trainer Underwear, 6-Pack
1K
▼ 50.0%vs. prior month
$13.6K
latest month
12-month trend

B0DW98SRY3
Girls Underwear, Soft Cotton Tagless Breathable Panties, 8-Pack, 18M-12Y
1K
▲ 25.0%vs. prior month
$14.6K
latest month
12-month trend

B0DW9C2N4W
Hanes Toddler Girls' Potty Trainer Brief, Moisture-Wicking Panty, Odor Protection Potty Trainer Underwear, 6-Pack
1K
▲ 0.0%vs. prior month
$18.6K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best 4t Underwear Girl Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Fruit of the Loom is the best-performing 4t underwear girl brand in July 2026, moving 11,000 units across 2 ASINs for 55.0% of Top 10 volume. Hanes follows with 5,000 units (25.0%), ahead of BliBliTaTa on 1,000 units (5.0%).
With 6 brands splitting the Top 10 and 85.0% 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 $11.47 to $14.24, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Fruit of the Loom
2 ASINs in Top 10
55.0%
Units
11K
Revenue
$115.5K
Avg. price
$11.98

B0797MPF4Y
$11.98·★4.7·7.1K revsFruit of the Loom Toddler Girls' Tag-Free Cotton Underwear
Units sold8K
B01M21DFJD
$11.98·★4.8·15.1K revsFruit of the Loom Toddler Girls' Tag-Free Cotton Underwear
Units sold3K
Hanes
4 ASINs in Top 10
25.0%
Units
5K
Revenue
$66.7K
Avg. price
$11.47

B07YNXHNYV
$9.76·★4.6·2.4K revsHanes Girls' Hanes Girls' 20-pack Tagless Cotton Brief Panties
Units sold2K
B0BHX5H5H7
$11.44·★4.7·2K revsHanes Toddler Girls' Potty Trainer Brief, Moisture-Wicking Panty, Odor Protection Potty Trainer Underwear, 6-Pack
Units sold1K
B0DW9C2N4W
$14.93·★4.5·61 revsHanes Toddler Girls' Potty Trainer Brief, Moisture-Wicking Panty, Odor Protection Potty Trainer Underwear, 6-Pack
Units sold1K
B07YNXM2R7
$9.76·★4.6·2.4K revsHanes Girls' Hanes Girls' 20-pack Tagless Cotton Brief Panties
Units sold1K
BliBliTaTa
1 ASIN in Top 10
5.0%
Units
1K
Revenue
$14.6K
Avg. price
$14.24

B0DW98SRY3
$14.24·★4.7·1.2K revsGirls Underwear, Soft Cotton Tagless Breathable Panties, 8-Pack, 18M-12Y
Units sold1K
Trending 4t Underwear Girl 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: B0DW98SRY3 booked 1K units at $14.24, with ▲ 25.0% 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.

B0DW98SRY3
Girls Underwear, Soft Cotton Tagless Breathable Panties, 8-Pack, 18M-12Y
Price
$14.24
Rating
4.7
Reviews
1.2K
Latest month sales

B07YFWVH7Z
Family Feeling Little Girl Underwear Toddler Panties Big Kids Undies Soft 100% Cotton
Price
$14.99
Rating
4.7
Reviews
5.3K
Latest month sales

B0892P3JFW
Disney girls Princess Panty Multipacks With Favorites Cinderella, Belle, Ariel and More in Sizes 2/3t, 4t, 4, 6, 8
Unlock to view ASIN details and product titles
Price
$16.23
Rating
4.4
Reviews
795
Latest month sales
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