---
title: "Mario Costume Kids — $16K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/mario-costume-kids"
last_updated: "2026-08-12T11:01:08.434Z"
locale: en
meta:
description: "Amazon product research for mario costume kids: $16K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mario costume kids: $16K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mario Costume Kids — $16K/mo Amazon US Product Research"
---
# **Mario Costume Kids**
**Skip it**
High returns (7.7%) — this niche doesn't clear our bar today.
Market size 38Growth 57Conversion 16Competition 75Returns 15Price range 86Avg price 95Brand share 34Review moat 62Quality gap 35
**Avg price**
**Incredible****$26.90**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.01–$47.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****40%**
top-5 click share — an open shelf
**Review moat**
**Good****1,020.4**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+31.9%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$192K**
$192K/yr · 567K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****7.7%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is mario costume kids profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mario costume kids is a $192K/yr Amazon United States market (567K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 48/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mario costume kids market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **$161K–$215K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#834**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **70%**
- **Out of stock**
- **15.1%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **165 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.
**Brands**
**13 **▲rising
**Sellers**
**69**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**40%**
Top 20: 80%
**Open market**
**11%**
- Disguise36% - Mavoka17% - Nintendo15% - Get Trend10% - ELEGAWHISPR7% - Komar Kids4% - Open — no brand owns it (7 brands, 11%)
## **mario costume kids demand & seasonality**
Weekly Amazon search volume, last 79 weeks — +31.9% search growth over the last 90 days.
70K50KSpike '25Spike '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 24.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/mario-costume-kids/trend)
## **Top mario costume kids search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mario costume kids**326K/yr+23.7%1.4% conv. - **disfraz de mario bros para nio**33K/yr+58.1%0.4% conv. - **traje de mario bros para nio**17K/yr+50.5%0.2% conv. - **super mario costume kids**47K/yr+15.8%1.3% conv. - **kids mario costume**23K/yr+34.9%1.9% conv. - **mario kids costume**14K/yr+19.4%1.8% conv. - **disfraz mario bros nio**8K/yr+39.2%0.2% conv. - **mario custom kids**6K/yr+10.8%1.2% conv. - **mario bros costume kids**9K/yr+41.9%1.1% conv. - **mario and luigi costume kids**27K/yr+0.7%1.3% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/mario-costume-kids/search-terms)
## **Top mario costume kids 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%$6K6%$12K9%$17K12%$23K101001K10K 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**Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)**Get Trend**$25.06**4.7★146 rev](https://www.amazon.com/dp/B0FTZKYPZW) [2**Disguise Nintendo Super Mario Costume Officially Licensed Super Mario Brothers Boys Costume Classic Child Size Medium (7-8)**Disguise**$26.14**4.6★7,924 rev](https://www.amazon.com/dp/B00JR4HBRK) [3**Disguise Nintendo Super Mario Costume Officially Licensed Super Mario Brothers Boys Costume Classic Child Size Small (4-6)**Disguise**$29.53**4.6★7,924 rev](https://www.amazon.com/dp/B00JR4HCW4) [4**Plumber Costume for Kids Shirt Overalls Glove Boys Halloween Party Cosplay 3T Red**Mavoka**$20.34**4.4★91 rev](https://www.amazon.com/dp/B0CX1K9LZB) [5**ELEGAWHISPR Halloween Costume Kids Plumber Jumpsuit with Hat Gloves Moustache Accessories Set (Red Medium(7-8 Years))**ELEGAWHISPR**$30.90**4.6★95 rev](https://www.amazon.com/dp/B0DP4DR5XP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**CGD Super Bros Costume Set with Hat Mustache Suspenders for Halloween Instant Dress Up Kit for Cosplay & Christmas**CGD**$19.85**45 rev6mo ago](https://www.amazon.com/dp/B0GG77QVF5) [**Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)**Get Trend**$25.06**146 rev6mo ago](https://www.amazon.com/dp/B0FTZKYPZW) [**QRT Super Bros Costume Kit with Hat Mustaches Suspenders Gloves Buttons ang Glasses frame for Halloween Cosplay and Christmas (red&green)**QRT**$22.71**140 rev1y ago](https://www.amazon.com/dp/B0F86JD1F1) [**VINUOKER Baby Boy Outfits Baby Boy Brother Matching Outfits Set**VINUOKER**$28.24**32 rev1y ago](https://www.amazon.com/dp/B0F21QNN3N) [**ELEGAWHISPR Halloween Costume Kids Plumber Jumpsuit with Hat Gloves Moustache Accessories Set (Red Medium(7-8 Years))**ELEGAWHISPR**$30.90**95 rev1y ago](https://www.amazon.com/dp/B0DP4DR5XP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nintendo Super Mario Brothers Boys Long Sleeve Onesie Zip Coverall with Hoodie Luigi Cosplay Zip Up Onesie for Kids (Green and Blue Size 14/16)**Nintendo**$38.57**4.8★**▲ 427%**](https://www.amazon.com/dp/B0D8MFSKHM) [**Super Mario Kids Baseball Cap & Sunglasses with UV Protection Adjustable Sun Hat Gaming Gifts for Boys Ages 614 (Red Super Mario)**Get Trend**$25.06**4.7★**▲ 423%**](https://www.amazon.com/dp/B0FTZKYPZW) [**Nintendo Super Mario Bomber Jacket for Boys Mario and Luigi Bomber Jacket (Bros. Blue Size 5/6)**Nintendo**$40.53**4.8★**▲ 416%**](https://www.amazon.com/dp/B0BQP57SGV) [**Mavoka Plumber Costume for Kids Shirt Overalls Glove Boys Halloween Party Cosplay 7-8 Years Green**Mavoka**$23.29**4.4★**▲ 415%**](https://www.amazon.com/dp/B0CX1D87DQ) [**VINUOKER Baby Boy Outfits Baby Boy Brother Matching Outfits Set**VINUOKER**$28.24**4.5★**▲ 388%**](https://www.amazon.com/dp/B0F21QNN3N)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mario costume kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“they fit me pretty well”*
**Quality-Overall**14%
*“Good quality”*
**Value For Money**13%
*“Great value for the money”*
**Ease Of Use**7%
*“Simple”*
**Comfort-Overall**5%
*“are very comfortable”*
**Design-Overall**4%
*“it also adds versatility since you can get creative with your outfit design”*
**Adjustability/Rotatability/Reclining**4%
*“the suspenders adjust easily”*
**Color**3%
*“The colors are bright”*
**Advertised Vs Actual Product**3%
*“Just as advertised”*
**Material Quality**3%
*“the materials feel sturdy enough for a night of trick-or-treating or multiple wears”*
### **What buyers complain about **
**Size-Overall**24%
*“it was very small”*
**Product Condition**9%
*“It looks previously used”*
**Material Quality**7%
*“The material is awful and so thin”*
**Value For Money**6%
*“I just assumed since it was a little expensive that it would be a higher quality costume”*
**Durability**6%
*“Broke right away”*
**Quality-Overall**3%
*“Not good quality at all”*
**Advertised Vs Actual Product**3%
*“Does not come with the white gloves pictured so its a bit misleading”*
**Ease Of Cleaning**3%
*“the pair I did receive were dirty”*
**Functionality-Overall**3%
*“It doesn't work”*
**Thickness**3%
*“Much thicker than expected”*
### **Top return reasons **
**Size-Overall**71%
**Quality-Overall**4%
**Product Condition**4%
**Material Quality**4%
**Advertised Vs Actual Product**4%
**Length**2%
**Value For Money**2%
**Defective Material/Parts**1%
**Adhesion/Stickiness**1%
**Thin**1%
## **Common mario costume kids questions**
- **Is mario costume kids profitable to sell on Amazon United States?**
- The niche generates $192K/yr across 40 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +31.9%. Flapen's verdict: Skip it (48/100).
- **How competitive is the mario costume kids niche?**
- 13 brands and 69 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in mario costume kids?**
- Top complaints mined from reviews: Size-Overall, Product Condition, Material Quality. The return rate is 7.7% — above our launch gate.
- **When does demand for mario costume kids peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 24.7× the quietest.
- **What does it cost to enter the mario costume kids niche?**
- Listings span $11.01–$47.01; the average listing price is $26.90 (sweet spot $15–$100). The average incumbent carries 1,020 reviews — the moat a new listing must climb.
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