6th birthday shirt girl
Skip itSoft demand (-30.3% this quarter) — this niche doesn't clear our bar today.
Brand share
Great53%top-5 brand share — no brand owns this niche
Review moat
Great375.22avg incumbent reviews — the moat a new listing must climb
Competition
Great37%top-5 click share — an open shelf
Avg price
Great$15.70avg listing price — sweet spot $15–$100
Price range
Good$7.05–$29.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Returns
Bad5.1%return rate — above 5% kills the launch gate
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$51K$51K/yr · 156K searches
Growth
Bad-30.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 6th birthday shirt girl is a $51K/yr Amazon United States market (156K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in Jan–Sep. Verdict: Skip it — 41/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
6th birthday shirt girl market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $47K–$63K
- units × avg price
- Conversion rate
- 2.1%
- Avg BSR
- #311
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 6.3%
- Avg brand age
- 24 months
- Avg seller age
- 192 days
Competition & brand share
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.Brands
30 falling
Sellers
34
Top-5 brand share
53%
Top 20: 92%
Top-5 click share
37%
Top 20: 76%
Open market
41%
- Unordinary Toddler18%
- GLIGLITTR10%
- IDOPARAS8%
- CPEI8%
- MULOIUDZ8%
- Tutu and Sian6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -30.3% search growth over the last 90 days.Peak months: Jan, Sep · busiest ÷ quietest = 2.1×
Top 6th birthday shirt girl search terms
- 6th birthday girl outfit40K/yr
- 6th birthday shirt girl43K/yr
- birthday girl shirt 624K/yr
- 6 year old girl birthday outfit15K/yr
- birthday outfit for 6 year old girl10K/yr
- 6 birthday shirt girl12K/yr
- birthday girl outfit 6 years old13K/yr
Top 6th birthday shirt girl products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Unicorn 6th Birthday Shirts for Toddler Girls Outfit 6 Year Old Six Sixth Shirt (US Age 7 Years Mauve)
Unordinary Toddler$12.914.7★371 rev
GLIGLITTR Birthday Girl Shirt 6th 7th 8th 9th Girls Birthday Tshirt Kids Bday Party Outfit Sequin Glitter Embroidery Tee Tops(Pink 6Y)
GLIGLITTR$17.234.8★134 rev
CPEI 6th Birthday Outfit for Girls 6 Year Old Six Sixth Shirt Skirt Birthday Outfit (Pink 6 Years)
CPEI$18.224.7★43 rev
Tutu and Sian Unicorn Birthday Outfit for Girls - Shirt Tutu Skirt Dress Birthday Girl Crown Hair Bow & Satin Sash (Unicorn 6Y 6 Years)
Tutu and Sian$28.554.8★542 rev
The Childrens Place girls Birthday Graphic Tee T Shirt White Small US
The Children's Place$7.054.8★1,849 rev
Newest
by launch date
MULOIUDZ Bow Birthday Girl Shirts Kid Toddler Girls B-Day T-Shirt Birthday Outfits Gifts Party Tees Short Sleeve Tops 1-8Y(Pink 6-7Y)
MULOIUDZ$14.8938 rev
MULOIUDZ Six Birthday Girl Shirts 6th Girls Birthday Outfits Kid Bow B-Day T-Shirt 6 Years Old Party Tees Gift Tops(Pink 6th)
MULOIUDZ$14.8935 rev
MULOIUDZ Six Birthday Girl Shirts 6th Girls Birthday Outfits Kid Bow B-Day T-Shirt 6 Years Old Party Tees Gift Tops(Hot Pink 6th)
MULOIUDZ$14.8435 rev
Mermaid 6th Birthday Shirts for Girls Happy Birthday Cotton T Shirt Short Sleeve Animals Purple Tee T-Shirt Party Clothes Top 6 Years
Lovekider$12.62172 rev
IDOPARAS Girls Sweet Sassy Six Birthday Outfit Shirt Kid 6th Bthday Tshirts Pink
IDOPARAS$9.9481 rev
Trending
90-day click momentum
CPEI 6th Birthday Outfit for Girls 6 Year Old Six Sixth Shirt Skirt Birthday Outfit (Purple 6 Years)
CPEI$18.674.7★
The Childrens Place girls Birthday Graphic Tee T Shirt White Small US
The Children's Place$7.054.8★
MULOIUDZ Bow Birthday Girl Shirts Kid Toddler Girls B-Day T-Shirt Birthday Outfits Gifts Party Tees Short Sleeve Tops 1-8Y(Pink 6-7Y)
MULOIUDZ$14.894.9★
MULOIUDZ Six Birthday Girl Shirts 6th Girls Birthday Outfits Kid Bow B-Day T-Shirt 6 Years Old Party Tees Gift Tops(Hot Pink 6th)
MULOIUDZ$14.844.7★
Gureui 6 Year Old Toddler Girl Birthday Outfit 6 Print Short Sleeve Shirt 6th Tutu Skirt Summer Clothes
Gureui$18.154.8★
What buyers say about 6th birthday shirt girl
What buyers praise and complain about, mined from review topics.What buyers love
“The fit was true to size”
“Good quality”
“Exactly as advertised”
“The color is so cute”
“The material is soft and comfortable, which is really important because she had it on for hours and never complained”
“Amazing and durable”
“is very comfortable”
“Good material very comfortable”
“a good price”
“The fabric is lightweight”
What buyers complain about
“Shorts are a little small”
“Its ok. Cheapy material”
“Runs big and decal doesnt stay on long”
“Shirt is a little thin”
“The item once revived was overall all okay quality there was a strand in the s that was pulled that I had to cut off”
“Dots lost their color”
“Would have been good if there werent holes”
“I was kinda skeptical to buy because of this one particular review about the straps being too thin”
“My daughter also hates things th at feel itchy”
“The price was a little high so I was hesitant”
Top return reasons
Common questions
- Is 6th birthday shirt girl profitable to sell on Amazon United States?
- The niche generates $51K/yr across 46 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -30.3%. Flapen's verdict: Skip it (41/100).
- How competitive is the 6th birthday shirt girl niche?
- 30 brands and 34 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 53% of demand.
- What do buyers complain about in 6th birthday shirt girl?
- Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 5.1% — above our launch gate.
- When does demand for 6th birthday shirt girl peak?
- Demand peaks in Jan–Sep; the busiest month runs 2.1× the quietest.
- What does it cost to enter the 6th birthday shirt girl niche?
- Listings span $7.05–$29.70; the average listing price is $15.70 (sweet spot $15–$100). The average incumbent carries 375 reviews — the moat a new listing must climb.