Birthday Shirts For Women Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Birthday Shirts For Women sales on Amazon US totaled 29,850 units in July 2026 (▼ 6.1% vs. the prior month), generating an estimated $394,546 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 77.1% of unit volume and 77.3% of revenue, while a typical listing is priced at $15.74. The keyword itself pulled 12,679 Amazon queries over the same period (▼ 14.8% MoM).
Zooming out to the 12-month window ending July 2026, the birthday shirts for women Top 50 moved 413,000 units and $5,418,951 in cumulative sales — an average of 34,417 units and $451,579 per month. Monthly throughput topped out at 42,800 units in September 2025 and dipped to 23,450 in May 2026, leaving the latest reading 25.8% lower than August 2025.
Birthday Shirts For Women 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
29.9K
▼ 6.1% MoM
Monthly Revenue 2026/07
$394.5K
▼ 5.1% MoM
Top 10 Market Share 2026/07
77.1%
Birthday Shirts For Women Market Share & Sales Concentration on Amazon US — July 2026
The most-sold birthday shirts for women listing on Amazon US in July 2026 is ASIN B09W4DK44V (Brand: Modify by Amazon Merch on Demand), which sold 10,000 units at $14.99 apiece — equal to 33.5% of every unit tracked in this report and 3.3× the volume of the No. 2 listing.
The Top 10 ASINs account for 23,000 units and $304,890 in July 2026 — 77.1% of unit volume and 77.3% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Birthday Shirts For Women' on Amazon
July 2026
Is 77.1% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B09W4DK44V
Modify by Amazon Merch on Demand Custom T-Shirt with Your Image for Men, Women and Kids by Modify by Amazon Merch on Demand
10K
▲ 0.0%vs. prior month
$149.9K
latest month
12-month trend
B08FBW5WF1
AOPRIE Birthday Girl Headband Happy Birthday Tiara for Women Girls Princess Crown Rhinestone Accessories, Gold
3K
▲ 50.0%vs. prior month
$18K
latest month
12-month trend
B0D8K32DNN
Modify by Amazon Merch on Demand Custom Front & Back Print T-Shirt with Your Image for Men, Women and Kids by Modify by Amazon Merch on Demand
2K
▼ 33.3%vs. prior month
$38K
latest month
12-month trend
B0C5952XGS
INPHER UPGRADED Blowable Birthday Cards 3D Pop Up Fireworks Cake Light and Music Happy Birthday Card Gifts for Women Men Mom Kids
2K
▼ 33.3%vs. prior month
$28K
latest month
12-month trend
B08QTZBMWB
CAVETEE Rose Gold Rhinestone Tiara with Glitter Birthday Queen Sash, Birthday Party Decorations for Women & Girls
1K
▲ 42.9%vs. prior month
$10K
latest month
12-month trend
B0CN96XG3Q
Fesciory Birthday Crown for Women, Gold Plated Crystal Tiara with Sash | Sparkling Princess Queen Tiara, Adult Fit, Birthday, Wedding, Prom, Coming of Age Gifts & Halloween Costume Accessories
1K
▲ 0.0%vs. prior month
$15.8K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Birthday Shirts For Women Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Modify by Amazon Merch on Demand is the best-performing birthday shirts for women brand in July 2026, moving 12,000 units across 2 ASINs for 52.2% of Top 10 volume. AOPRIE follows with 4,000 units (17.4%), ahead of INPHER on 3,000 units (13.0%).
With 7 brands splitting the Top 10 and 82.6% 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 $5.99 to $16.99, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Modify by Amazon Merch on Demand
2 ASINs in Top 10
52.2%
Units
12K
Revenue
$187.9K
Avg. price
$16.99
B09W4DK44V
$14.99·★4.2·5.2K revsModify by Amazon Merch on Demand Custom T-Shirt with Your Image for Men, Women and Kids by Modify by Amazon Merch on Demand
Units sold10KB0D8K32DNN
$18.99·★4.2·1.2K revsModify by Amazon Merch on Demand Custom Front & Back Print T-Shirt with Your Image for Men, Women and Kids by Modify by Amazon Merch on Demand
Units sold2K
AOPRIE
2 ASINs in Top 10
17.4%
Units
4K
Revenue
$24K
Avg. price
$5.99
B08FBW5WF1
$5.99·★4.5·3.6K revsAOPRIE Birthday Girl Headband Happy Birthday Tiara for Women Girls Princess Crown Rhinestone Accessories, Gold
Units sold3KB0DC8YV345
$5.99·★4.8·489 revsAOPRIE Pink Birthday Sash for Women Girls Happy Birthday Crown Tiara for Women Headband Princess Crown Accessories Decorations
Units sold1K
INPHER
2 ASINs in Top 10
13.0%
Units
3K
Revenue
$38K
Avg. price
$9.99
B0C5952XGS
$9.99·★4.7·7.8K revsINPHER UPGRADED Blowable Birthday Cards 3D Pop Up Fireworks Cake Light and Music Happy Birthday Card Gifts for Women Men Mom Kids
Units sold2KB0BXT1PNSQ
$9.99·★4.6·6.6K revsINPHER UPGRADED Birthday Cards Fireworks Pop Up Cake Light and Music Happy Birthday Gifts Decorations for Women, Men, Mom, Grandma
Units sold1K
Trending Birthday Shirts For Women 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: B08QTZBMWB booked 1K units at $9.49, with ▲ 42.9% MoM change. On the growth side, B09GYTQYR6 leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B09GYVDB76 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.
B08QTZBMWB
CAVETEE Rose Gold Rhinestone Tiara with Glitter Birthday Queen Sash, Birthday Party Decorations for Women & Girls
Price
$9.49
Rating
4.7
Reviews
4K
Latest month sales
B09GYTQYR6
Bluey Matching Family Short Sleeve T-Shirt
Price
$19.99
Rating
4.6
Reviews
716
Latest month sales
B09GYVDB76
Bluey Matching Family Short Sleeve T-Shirt
Unlock to view ASIN details and product titles
Price
$19.99
Rating
4.6
Reviews
716
Latest month sales
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