6th birthday shirt boy
Skip itA small market ($39K/yr) — this niche doesn't clear our bar today.
Competition
Great38%top-5 click share — an open shelf
Review moat
Great475.58avg incumbent reviews — the moat a new listing must climb
Avg price
Good$14.40avg listing price — sweet spot $15–$100
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Price range
Okay$7.58–$19.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Returns
Bad6.0%return rate — above 5% kills the launch gate
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-18.2%90-day search growth — must beat 0% to launch
Market size
Bad$39K$39K/yr · 139K searches
According to Flapen's Amazon United States niche tracking, 6th birthday shirt boy is a $39K/yr Amazon United States market (139K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Sep. Verdict: Skip it — 36/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
6th birthday shirt boy market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $43K–$58K
- units × avg price
- Conversion rate
- 2.0%
- Avg BSR
- #2,178
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 87%
- Out of stock
- 2.3%
- Avg brand age
- 24 months
- Avg seller age
- 187 days
Competition & brand share
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.Brands
19 falling
Sellers
19
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
38%
Top 20: 71%
Open market
18%
- Unordinary Toddler43%
- GLIGLITTR13%
- AG AGUU10%
- Tstars6%
- The Children's Place5%
- SOFEON5%
- Open — no brand owns it (13 brands, 18%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -18.2% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 1.9×
Top 6th birthday shirt boy search terms
- 6th birthday shirt boy62K/yr
- birthday boy shirt 637K/yr
- 6 birthday shirt boy12K/yr
- birthday shirt boy 68K/yr
- birthday dude shirt7K/yr
- birthday shirt toddler boy6K/yr
- birthday dude shirt boy7K/yr
Top 6th birthday shirt boy 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
Unordinary Toddler Boys 6th Birthday Shirt (Charcoal Blue 7 Years)
Unordinary Toddler$12.764.8★1,813 rev
Birthday boy Shirt Toddler Construction Shirts Boys 2t 3t 4 Year Old Excavator Theme Party t-Shirt 5 Kids 6th Outdoor Play (US Age 7 Years French Blue - 6th)
Unordinary Toddler$13.034.9★43 rev
Birthday boy Shirt Toddler Boys Outfit First Happy 2t 3t 4 Year Old 5 Kids 6th (Charcoal Black 12 Months)
Unordinary Toddler$12.694.8★4,726 rev
Birthday boy Shirt Toddler Boys Outfit First Happy 12m 2t 3t 4 Year Old 5 Kids 6th Number Printed T-Shirt (US Age 7 Years Charcoal Black - 6th)
Unordinary Toddler$14.054.8★39 rev
SOFEON Birthday Boy Shirt Toddler Boy 2nd 3rd 4th 5th 6th Birthday T-Shirt Kids 2-6 Years Old Birthday Gift Tees Party Top(Green-6th 6T(130))
SOFEON$14.904.5★65 rev
Newest
by launch dateBirthday boy Shirt Toddler Construction Shirts Boys 2t 3t 4 Year Old Excavator Theme Party t-Shirt 5 Kids 6th Outdoor Play (US Age 7 Years French Blue - 6th)
Unordinary Toddler$13.0343 rev
GLIGLITTR Birthday Boy Shirt Birthday Dude Tshirt 2nd 3rd 4th 5th 6th 7th 8th Toddler Boys Bday Party Short Sleeve Outfit Top(Apricot 2-3T)
GLIGLITTR$14.9939 rev
GLIGLITTR Birthday Boy Shirt Birthday Dude Tshirt 2nd 3rd 4th 5th 6th 7th 8th Toddler Boys Bday Party Short Sleeve Outfit Top(Green 6-7X)
GLIGLITTR$14.7439 rev
GLIGLITTR Birthday Boy Shirt Birthday Dude Tshirt 2nd 3rd 4th 5th 6th 7th 8th Toddler Boys Bday Party Short Sleeve Outfit Top(Green 5-6X)
GLIGLITTR$14.6939 rev
GLIGLITTR Birthday Boy Shirt Birthday Dude Tshirt 2nd 3rd 4th 5th 6th 7th 8th Toddler Boys Bday Party Short Sleeve Outfit Top(Sky Blue 5-6X)
GLIGLITTR$14.8839 rev
Trending
90-day click momentum
Birthday boy Shirt Toddler Boys Outfit First Happy 12m 2t 3t 4 Year Old 5 Kids 6th Number Printed T-Shirt (US Age 6 Years Charcoal Black - 5th)
Unordinary Toddler$13.074.8★
Birthday boy Shirt Toddler Construction Shirts Boys 2t 3t 4 Year Old Excavator Theme Party t-Shirt 5 Kids 6th Outdoor Play (US Age 7 Years French Blue - 6th)
Unordinary Toddler$13.034.9★
Birthday boy Shirt Toddler Boys Outfit First Happy 12m 2t 3t 4 Year Old 5 Kids 6th Number Printed T-Shirt (US Age 7 Years Charcoal Black - 6th)
Unordinary Toddler$14.054.8★
Tstars 6th Birthday Shirt for Boys or Girls - This Is What an Awesome 6 Year Old Looks Like Youth Kids T-Shirt Gift Medium Blue
Tstars$14.894.6★
GLIGLITTR Birthday Boy Shirt Birthday Dude Tshirt 2nd 3rd 4th 5th 6th 7th 8th Toddler Boys Bday Party Short Sleeve Outfit Top(Green 6-7X)
GLIGLITTR$14.744.6★
What buyers say about 6th birthday shirt boy
What buyers praise and complain about, mined from review topics.What buyers love
“It fits true to size”
“Good quality”
“Its very soft”
“Beautiful color”
“the fabric is basic shirt material it was comfortable”
“Great for the price”
“The design is simple”
“As described”
“Its comfortable, durable, and looks adorable for birthday celebrations”
“The screen print is high quality and looks great”
What buyers complain about
“Returned on the small side”
“Cheap”
“unfortunately paid nearly $20 for this product”
“It feels like a very cheap polyester”
“Had holes by the end of day”
“wish it was a little longer”
“have a very big neck looks like already used someone before I brought it”
“The shirt is incredibly thin with poor stitching and loose threads”
“Had holes by the end of day”
“Very thin”
Top return reasons
Common questions
- Is 6th birthday shirt boy profitable to sell on Amazon United States?
- The niche generates $39K/yr across 52 tracked products. 3 of 18 products launched in the last 360 days are still selling. 90-day search growth is -18.2%. Flapen's verdict: Skip it (36/100).
- How competitive is the 6th birthday shirt boy niche?
- 19 brands and 19 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in 6th birthday shirt boy?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 6.0% — above our launch gate.
- When does demand for 6th birthday shirt boy peak?
- Demand peaks in Sep; the busiest month runs 1.9× the quietest.
- What does it cost to enter the 6th birthday shirt boy niche?
- Listings span $7.58–$19.05; the average listing price is $14.40 (sweet spot $15–$100). The average incumbent carries 476 reviews — the moat a new listing must climb.