---
title: "Boys Halloween Costumes 8-10 — $245K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/boys-halloween-costumes-8-10"
last_updated: "2026-08-10T21:06:42.565Z"
locale: en
meta:
description: "Niche score 49/100 · $245K/yr market · 1.1M searches/yr · $31.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $245K/yr market · 1.1M searches/yr · $31.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Boys Halloween Costumes 8-10 — $245K/yr Amazon US Niche (2026) - Flapen"
---
# **boys halloween costumes 8-10**
**Skip it**
Weak search conversion (0.7%) — this niche doesn't clear our bar today.
Market size 46Growth 14Conversion 9Competition 87Returns 23Price range 71Avg price 95Brand share 96Review moat 43Quality gap 33
**Brand share**
**Incredible****34%**
top-5 brand share — no brand owns this niche
**Avg price**
**Incredible****$31.38**
avg listing price — sweet spot $15–$100
**Competition**
**Great****28%**
top-5 click share — an open shelf
**Price range**
**Good****$6.54–$126.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$245K**
$245K/yr · 1.1M searches
**Review moat**
**Okay****2,182.97**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****5.5%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-22.7%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, boys halloween costumes 8-10 is a $245K/yr Amazon United States market (1.1M searches/yr). The top 5 brands hold 34% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 49/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **boys halloween costumes 8-10 market data**
- **Units sold / yr**
- **8K–10K**
- avg 0–100/product
- **Revenue / yr**
- **$251K–$314K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#783**
- **Page quality**
- **0%**
- **Prime**
- **99%**
- **Sponsored**
- **87%**
- **Out of stock**
- **12.4%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.
**Brands**
**56 **▼falling
**Sellers**
**107**
**Top-5 brand share**
**34%**
Top 20: 75%
**Top-5 click share**
**28%**
Top 20: 63%
**Open market**
**60%**
- mcuaeddu9% - Jazwares Costume Play7% - Spooktacular Creations6% - Teuevayl6% - Marvel6% - Jeowoqao6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -22.7% search growth over the last 90 days.
200K150KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 57.0×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/boys-halloween-costumes-8-10/trend)
## **Top boys halloween costumes 8-10 search terms**
- **boys costumes 6-8**62K/yr-13.5%0.8% conv. - **boys costumes 4-6**48K/yr-28.2%1.9% conv. - **disfraz nio**38K/yr+20.0%0.0% conv. - **boy costumes 4-6**29K/yr+7.3%1.0% conv. - **boys costumes 10-12**86K/yr-47.6%0.3% conv. - **kids costumes for boys 4-6**46K/yr-20.5%0.6% conv. - **boys costumes 8-10**91K/yr-70.7%0.6% conv. - **boys halloween costumes 8-10**187K/yr+59.9%0.1% conv. - **boy costumes 6-8**50K/yr-47.8%0.3% conv. - **costumes for kids 10-12**22K/yr+16.4%0.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/boys-halloween-costumes-8-10/search-terms)
## **Top boys halloween costumes 8-10 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.
0%3%$7K6%$15K9%$22K12%$29K101001K10K100K 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**mcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (10-12 Years)**mcuaeddu**$36.83**4.6★169 rev](https://www.amazon.com/dp/B0GJNSYXH2) [2**Teuevayl Boys Muscle Chest Dress up Costumes Trunk with Superhero Policeman Fireman Costume Kids Pretend Role Play Costumes Set Boys Dress up Clothes for Kids Ages 3 4 5 6 7**Teuevayl**$33.63**4.5★1,120 rev](https://www.amazon.com/dp/B08GWN94LN) [3**Jeowoqao Costumes for Kids Boys Dress up Clothes for Role Play Boys Muscle Chest Dress up Costumes with Policeman Fireman Costume for Toddler Boy 3 4 5 6 Years Christmas Birthday Gifts**Jeowoqao**$28.79**4.4★87 rev](https://www.amazon.com/dp/B0FNMB2RFV) [4**Spooktacular Creations Halloween Ninja Costume Black Ninja Outfit Set for Kids Halloween Costumes with Accessories for Boys Dress Up and Role Play Party (Small 5-7 yrs)**Spooktacular Creations**$28.57**4.7★10,729 rev](https://www.amazon.com/dp/B075BLPK16) [5**Elite Sports IBJJF Ultra Light BJJ Brazilian Jiu Jitsu Gi for Kids with Preshrunk Fabric and Free Belt (Green 1)**Elite Sports**$44.22**4.8★5,654 rev](https://www.amazon.com/dp/B08B3ZFDKP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Marvel Unisex Child Kids 2-piece Snug-fit Cotton Pajama Set Spider Costume 6 US**Marvel**$13.73**3,269 rev2mo ago](https://www.amazon.com/dp/B09D4TTPNZ) [**Spiderman Boys 2-Piece Snug-fit Cotton Holiday Pajama Set Soft & Cute for Kids MILES UNIFORM 6**Marvel**$15.32**3,269 rev2mo ago](https://www.amazon.com/dp/B0DDWD28DZ) [**mcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (10-12 Years)**mcuaeddu**$36.83**169 rev5mo ago](https://www.amazon.com/dp/B0GJNSYXH2) [**DISHIO Kids Pretend Role Play Costumes Dress Up Clothes for Toddlers 4 Sets Astronaut Policeman Firefighter Engineer Costume for Kids and Toddlers Boys Christmas Birthday Age 3 to 6**DISHIO**$27.18**60 rev9mo ago](https://www.amazon.com/dp/B0FMRT3H45) [**Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit**Nabobs**$15.29**76 rev9mo ago](https://www.amazon.com/dp/B0FT7K6BKR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Spiderman Boys 2-Piece Snug-fit Cotton Holiday Pajama Set Soft & Cute for Kids MILES UNIFORM 6**Marvel**$15.32**4.7★**▲ 995%**](https://www.amazon.com/dp/B0DDWD28DZ) [**Elite Sports IBJJF Ultra Light BJJ Brazilian Jiu Jitsu Gi for Kids with Preshrunk Fabric and Free Belt (Black 1)**Elite Sports**$43.46**4.8★**▲ 982%**](https://www.amazon.com/dp/B08B3YTGWB) [**Elite Sports IBJJF Ultra Light BJJ Brazilian Jiu Jitsu Gi for Kids with Preshrunk Fabric and Free Belt (Green 1)**Elite Sports**$44.22**4.8★**▲ 965%**](https://www.amazon.com/dp/B08B3ZFDKP) [**mcuaeddu Demogorgon Onesie Halloween Costume Costume Warm Long Sleeve Costume (10-12 Years)**mcuaeddu**$36.83**4.6★**▲ 961%**](https://www.amazon.com/dp/B0GJNSYXH2) [**Nabobs Unisex Animal Onesie Costume Flannel Halloween Cosplay Costume - Homewear Animal Outfit**Nabobs**$15.29**4.7★**▲ 958%**](https://www.amazon.com/dp/B0FT7K6BKR)
**~~View all trending →~~**
## **What buyers say about boys halloween costumes 8-10**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“A+ Quality”*
**Fun/Entertainment Experience**15%
*“Fun for kids”*
**Size-Overall**11%
*“Fit as expected”*
**Gifting Purpose**9%
*“Cute Gift”*
**Value For Money**7%
*“Excellent value”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Ease Of Use**3%
*“Easy to use”*
**Comfort-Overall**3%
*“They are comfortable”*
**Material Quality**3%
*“Good material”*
**Brightness/Shine/Glow**3%
*“bright lights”*
### **What buyers complain about **
**Size-Overall**19%
*“Little big”*
**Quality-Overall**18%
*“not well made”*
**Durability**13%
*“Breaks very easily”*
**Material Quality**4%
*“Poor material”*
**Functionality-Overall**3%
*“Didnt work”*
**Value For Money**2%
*“The price is a little much”*
**Charging**2%
*“not able to recharge”*
**Product Condition**2%
*“Received used items”*
**Strap/String Quality**2%
*“missing straps”*
**Stitch/Finish/Polish**2%
*“Stitching is very poor quality”*
### **Top return reasons **
**Size-Overall**66%
**Length**4%
**Advertised Vs Actual Product**4%
**Quality-Overall**3%
**Material Quality**3%
**Product Condition**2%
**Functionality-Overall**2%
**Defective Material/Parts**2%
**Value For Money**2%
**Gap/Hole**1%
## **Common questions**
- **Is boys halloween costumes 8-10 profitable to sell on Amazon United States?**
- The niche generates $245K/yr across 77 tracked products. 8 of 19 products launched in the last 360 days are still selling. 90-day search growth is -22.7%. Flapen's verdict: Skip it (49/100).
- **How competitive is the boys halloween costumes 8-10 niche?**
- 56 brands and 107 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 34% of demand.
- **What do buyers complain about in boys halloween costumes 8-10?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 5.5% — above our launch gate.
- **When does demand for boys halloween costumes 8-10 peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 57.0× the quietest.
- **What does it cost to enter the boys halloween costumes 8-10 niche?**
- Listings span $6.54–$126.46; the average listing price is $31.38 (sweet spot $15–$100). The average incumbent carries 2,183 reviews — the moat a new listing must climb.
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