---
title: "Mario Birthday Shirt — $2K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/mario-birthday-shirt"
last_updated: "2026-08-12T11:01:28.644Z"
locale: en
meta:
description: "Amazon product research for mario birthday shirt: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mario birthday shirt: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mario Birthday Shirt — $2K/mo Amazon US Product Research"
---
# **Mario Birthday Shirt**
**Skip it**
A small market ($22K/yr) — this niche doesn't clear our bar today.
Market size 6Growth 61Conversion 26Competition 74Returns 66Price range 75Avg price 82Brand share 40Review moat 85Quality gap 24
**Review moat**
**Great****302.56**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$17.79**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.18–$40.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****40%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+38.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$22K**
$22K/yr · 60K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
## **Is mario birthday shirt profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mario birthday shirt is a $22K/yr Amazon United States market (60K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Apr–May. Verdict: Skip it — 49/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mario birthday shirt market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$22K–$27K**
- units × avg price
- **Conversion rate**
- **2.1%**
- **Avg BSR**
- **#4,711**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **76%**
- **Out of stock**
- **2.5%**
- **Avg brand age**
- **27 months**
- **Avg seller age**
- **173 days**
## **Competition: brands, sellers & click share**
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▲rising
**Sellers**
**19**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**40%**
Top 20: 75%
**Open market**
**16%**
- Hewtwerck27% - Super Mario21% - MorgaLithon17% - Isaac Morris Limited13% - BLNKLV3% - Lil' Daisy store3% - Open — no brand owns it (15 brands, 16%)
## **mario birthday shirt demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +38.3% search growth over the last 90 days.
2K2KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 3.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/mario-birthday-shirt/trend)
## **Top mario birthday shirt search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mario birthday shirt**31K/yr+42.9%1.4% conv. - **super mario birthday shirt**19K/yr+37.6%1.3% conv. - **mario birthday shirt 6**4K/yr+29.6%1.4% conv. - **mario 5th birthday shirt**3K/yr+15.9%3.5% conv. - **mario birthday shirt 5**3K/yr+35.7%4.5% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/mario-birthday-shirt/search-terms)
## **Top mario 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.
0%3%$6656%$1K9%$2K12%$3K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hewtwerck Super Soft Birthday Boy Short Sleeve T-Shirt Gifts for Boys Birthday Party (US Age 3 Years 4 Years Red)**Hewtwerck**$15.91**4.7★49 rev](https://www.amazon.com/dp/B0D1TK3M7L) [2**Hewtwerck Super Soft Birthday Boy Short Sleeve T-Shirt Gifts for Boys Birthday Party (US Age 5 Years 6 Years Red)**Hewtwerck**$15.73**4.7★49 rev](https://www.amazon.com/dp/B0D1TM92KS) [3**Mom T-Shirt - Mommy Shirts - Mother Shirt - Mothers Day Shirt for Moms - Gifts for Mom on Mothers Day Birthday Christmas (Black L)**MorgaLithon**$17.92**4.6★153 rev](https://www.amazon.com/dp/B0DT4JTQL7) [4**Super Mario and Luigi 5th Birthday Portrait Tees T Shirts for Men Women Kids**Super Mario**$18.86**4.7★532 rev](https://www.amazon.com/dp/B07WJYKMV1) [5**Game On Little Boys T Shirt 5/6 Blue**Isaac Morris Limited**$17.86**4.6★34 rev](https://www.amazon.com/dp/B0DY2XXR7D)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2026 Super Game Movies Mario Galaxy T-Shirt for Men Women Kids Classic Game Movies Mario Graphic Tee Soft Cotton Casual Shirt Gamer Gift Tee**LEKAI**$14.77**15 rev3mo ago](https://www.amazon.com/dp/B0GV6SD1H5) [**Isaac Morris Limited Mario Big Boys Graphic T Shirt 8 Cream**Isaac Morris Limited**$12.80**29 rev4mo ago](https://www.amazon.com/dp/B0GNC94QVY) [**Isaac Morris Limited Mario Little Boys Graphic T Shirt Blue 5/6**Isaac Morris Limited**$12.94**67 rev6mo ago](https://www.amazon.com/dp/B0GFXJR8D5) [**Family Personalized Birthday Party Inspired Matching Custom T-Shirts (US Alpha Small XX-Large Regular Twin Brothers World)**BLNKLV**$19.46**22 rev1y ago](https://www.amazon.com/dp/B0DZR3CYPH) [**Game On Little Boys T Shirt 5/6 Blue**Isaac Morris Limited**$17.86**34 rev1y ago](https://www.amazon.com/dp/B0DY2XXR7D)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Isaac Morris Limited Mario Big Boys Graphic T Shirt 8 Cream**Isaac Morris Limited**$12.80**4.3★**▲ 56%**](https://www.amazon.com/dp/B0GNC94QVY) [**2026 Super Game Movies Mario Galaxy T-Shirt for Men Women Kids Classic Game Movies Mario Graphic Tee Soft Cotton Casual Shirt Gamer Gift Tee**LEKAI**$14.77**4.0★**▲ 56%**](https://www.amazon.com/dp/B0GV6SD1H5) [**Isaac Morris Limited Mario Little Boys Graphic T Shirt Blue 5/6**Isaac Morris Limited**$12.94**4.8★**▲ 54%**](https://www.amazon.com/dp/B0GFXJR8D5) [**Game On Little Boys T Shirt 5/6 Blue**Isaac Morris Limited**$17.86**4.6★**▲ 54%**](https://www.amazon.com/dp/B0DY2XXR7D) [**Kozmoz Hall Dad Shirts - Daddy Shirt - Father Day Tshirt - Dads Tee for Fathers Day - Birthday Gifts from Kids for Dad from Daughter Son (Black-3XL)**Kozmoz Hall**$15.62**4.8★**▲ 47%**](https://www.amazon.com/dp/B0DX263GXX)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mario birthday shirt**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**23%
*“Perfect fit and gift for my grandson”*
**Quality-Overall**23%
*“Quality work and arrived quickly”*
**Advertised Vs Actual Product**9%
*“Love it as shown”*
**Material Quality**8%
*“The material is super soft - perfect for kiddos”*
**Color**6%
*“The color is true to the color”*
**Value For Money**4%
*“Worth the money”*
**Soft Feel**3%
*“Nice quality soft shirts”*
**Design-Overall**3%
*“Good quality, nice design”*
**Durability**3%
*“Perfect didnt come broke Either”*
**Print Quality**3%
*“Clear print”*
### **What buyers complain about **
**Size-Overall**25%
*“they all ran a tad small/slim”*
**Quality-Overall**13%
*“They are ok just a little cheap looking”*
**Value For Money**8%
*“Too pricey for A bad picture”*
**Shrinkage Resistance**7%
*“It shrinks”*
**Advertised Vs Actual Product**5%
*“not 100% as advertised”*
**Design-Overall**5%
*“the back design melted together”*
**Print Quality**4%
*“the fabric looks like it had folded over during printing”*
**Material Quality**3%
*“Also flimsy material”*
**Chest Fit**3%
*“the chest, and especially arms, are like one size too tight”*
**Strength**2%
*“Also flimsy material”*
### **Top return reasons **
**Size-Overall**61%
**Length**10%
**Chest Fit**5%
**Quality-Overall**3%
**Color**3%
**Print Quality**3%
**Material Quality**2%
**Advertised Vs Actual Product**2%
**Sleeve Fit**2%
**Value For Money**2%
## **Common mario birthday shirt questions**
- **Is mario birthday shirt profitable to sell on Amazon United States?**
- The niche generates $22K/yr across 50 tracked products. 1 of 10 products launched in the last 360 days are still selling. 90-day search growth is +38.3%. Flapen's verdict: Skip it (49/100).
- **How competitive is the mario birthday shirt niche?**
- 21 brands and 19 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in mario birthday shirt?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 2.4%.
- **When does demand for mario birthday shirt peak?**
- Demand peaks in Apr–May; the busiest month runs 3.4× the quietest.
- **What does it cost to enter the mario birthday shirt niche?**
- Listings span $6.18–$40.96; the average listing price is $17.79 (sweet spot $15–$100). The average incumbent carries 303 reviews — the moat a new listing must climb.
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