Monster Truck Birthday Shirt
Skip itA small market ($20K/yr) — this niche doesn't clear our bar today.
Competition
Great32%top-5 click share — an open shelf
Review moat
Great414.57avg incumbent reviews — the moat a new listing must climb
Avg price
Great$16.61avg listing price — sweet spot $15–$100
Price range
Great$9.19–$38.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.4%return rate — above 5% kills the launch gate
Brand share
Good67%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-11.1%90-day search growth — must beat 0% to launch
Conversion
Bad1.3%search→purchase rate — share of searches ending in a sale
Market size
Bad$20K$20K/yr · 90K searches
Is monster truck birthday shirt profitable on Amazon?
According to Flapen's Amazon United States niche tracking, monster truck birthday shirt is a $20K/yr Amazon United States market (90K searches/yr). The top 5 brands hold 67% of demand. Verdict: Skip it — 45/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
monster truck birthday shirt market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- $33K–$42K
- units × avg price
- Conversion rate
- 1.3%
- Avg BSR
- #9,126
- Page quality
- 0%
- Prime
- 97%
- Sponsored
- 93%
- Out of stock
- 5.7%
- Avg brand age
- 18 months
- Avg seller age
- 192 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.Brands
30 rising
Sellers
16
Top-5 brand share
67%
Top 20: 94%
Top-5 click share
32%
Top 20: 64%
Open market
30%
- Monster Jam33%
- HQHKEPWA10%
- UNICOMIDEA10%
- Kakaban9%
- Monster Truck Birthday Shirs5%
- Zcaynger3%
monster truck birthday shirt demand & seasonality
Weekly Amazon search volume, last 10 weeks — -11.1% search growth over the last 90 days.Top monster truck birthday shirt search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- monster truck birthday shirt40K/yr
- monster jam birthday shirt28K/yr
- monster truck birthday shirt 46K/yr
- monster truck 3rd birthday shirt6K/yr
- monster truck birthday shirt 36K/yr
- monster truck 4th birthday shirt5K/yr
Top monster truck birthday shirt products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.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
Monster Jam Grave Digger El Toro Loco Maximum Destruction Little Boys T-Shirt Birthday Jammer 6
Monster Jam$20.554.8★142 rev
UNICOMIDEA Birthday Boy Shirt 4t Black Boys T Shirt Short Sleeve Front Monster Truck Back Number 4 Print Summer Funny Kids Tees Birthday Party
UNICOMIDEA$11.324.4★89 rev
Monster Jam Grave Digger El Toro Loco Maximum Destruction Toddler Boys T-Shirt Birthday Jammer 4T
Monster Jam$20.764.8★142 rev
Birthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 4 5-6T)
Kakaban$9.194.1★4 rev
Birthday Boy Monster Truck are My Jam Bday Party Kids Boys T-Shirt
Monster Truck Birthday Shirs$17.244.6★53 rev
Newest
by launch dateBirthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 4 5-6T)
Kakaban$9.194 rev
Birthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 3 4-5T)
Kakaban$10.214 rev
Birthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 2 3-4T)
Kakaban$11.644 rev
UNICOMIDEA Birthday Boy Shirt 4t Black Boys T Shirt Short Sleeve Front Monster Truck Back Number 4 Print Summer Funny Kids Tees Birthday Party
UNICOMIDEA$11.3289 rev
Birthday 3 Year Old Boys 3rd Party Monster Truck T-Shirt
Funny Monster Truck Birthday Tee$15.572 rev
Trending
90-day click momentumBirthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 4 5-6T)
Kakaban$9.194.1★
UNICOMIDEA Birthday Boy Shirt 4t Black Boys T Shirt Short Sleeve Front Monster Truck Back Number 4 Print Summer Funny Kids Tees Birthday Party
UNICOMIDEA$11.324.4★
Birthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 3 4-5T)
Kakaban$10.214.1★
Birthday Boy Shirt Toddler Boys 2t 3t 4T 5T 6T Birthday Short Sleeve Monster Truck Funny T-Shirt Top (Beige 2 3-4T)
Kakaban$11.644.1★
HQHKEPWA Birthday Boys Shirts Kids T-Shirt Monster Truck Toddler Short Sleeve Summer Top Outfits Casual Tees 2 Years Grey
HQHKEPWA$12.864.8★
What reviews say buyers love and hate about monster truck birthday shirt
What buyers praise and complain about, mined from review topics.What buyers love
“Fit great”
“Made well, looks like it will last a while”
“Exactly what I wanted”
“Comfortable”
“Great value”
“Very soft and fit real good”
“colors were vibrant”
“Great shirt great print”
“Very cute and durable”
“the material is comfortable”
What buyers complain about
“The shirt runs extremely small”
“Cheap shirt”
“The material itself was a little on the cheaper side”
“The print quality is not great on this shirt”
“The black color wears off after one wash”
“The shirt arrived with loose stitching”
“fits small and shrinks like crazy after a wash”
“Black faded with out washing unfortunately”
“the picture is much smaller than it appears in the listing”
“It looks awkward”
Top return reasons
Common monster truck birthday shirt questions
- Is monster truck birthday shirt profitable to sell on Amazon United States?
- The niche generates $20K/yr across 68 tracked products. 4 of 43 products launched in the last 360 days are still selling. 90-day search growth is -11.1%. Flapen's verdict: Skip it (45/100).
- How competitive is the monster truck birthday shirt niche?
- 30 brands and 16 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 67% of demand.
- What do buyers complain about in monster truck birthday shirt?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 2.4%.
- What does it cost to enter the monster truck birthday shirt niche?
- Listings span $9.19–$38.09; the average listing price is $16.61 (sweet spot $15–$100). The average incumbent carries 415 reviews — the moat a new listing must climb.