---
title: "Sumo Wrestling Costume for Kids — $42K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/sumo-wrestling-costume-for-kids"
last_updated: "2026-08-10T02:16:21.450Z"
locale: en
meta:
description: "Niche score 37/100 · $42K/yr market · 37K searches/yr · $33.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 37/100 · $42K/yr market · 37K searches/yr · $33.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sumo Wrestling Costume for Kids — $42K/yr Amazon US Niche (2026) - Flapen"
---
# **sumo wrestling costume for kids**
**Skip it**
Soft demand (-31.7% this quarter) — this niche doesn't clear our bar today.
Market size 10Growth 9Conversion 41Competition 32Returns 26Price range 95Avg price 95Brand share 37Review moat 62Quality gap 68
**Avg price**
**Incredible****$33.90**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$19.12–$86.93**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,012.62**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.3%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Okay****5.0%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$42K**
$42K/yr · 37K searches
**Growth**
**Bad****-31.7%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, sumo wrestling costume for kids is a $42K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 37/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sumo wrestling costume for kids market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$51K–$68K**
- units × avg price
- **Conversion rate**
- **3.3%**
- **Avg BSR**
- **#2,439**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **62%**
- **Out of stock**
- **16.0%**
- **Avg brand age**
- **58 months**
- **Avg seller age**
- **201 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **—flat
**Sellers**
**21**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**12%**
- Threadsorcery39% - Morph18% - BROWNYEW13% - Big Time Toys9% - Spooktacular Creations5% - SUNSHINE-MALL4% - Open — no brand owns it (3 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -31.7% search growth over the last 90 days.
7K5KSpike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 29.1×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/sumo-wrestling-costume-for-kids/trend)
## **Top sumo wrestling costume for kids search terms**
- **sumo wrestler inflatable costume kids**14K/yr-44.6%3.9% conv. - **kids sumo wrestler costume**7K/yr+6.5%1.1% conv. - **kids sumo wrestler inflatable**4K/yr-47.8%4.2% conv. - **sumo costume kids**3K/yr-18.8%1.1% conv. - **sumo wrestler costume kids**4K/yr+23.4%0.9% conv. - **inflatable sumo costume kids**3K/yr-17.1%2.3% conv. - **sumo inflatable costume kids**3K/yr-48.0%19.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/sumo-wrestling-costume-for-kids/search-terms)
## **Top sumo wrestling costume for kids 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%10%$4K20%$8K30%$12K40%$17K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Black)**Threadsorcery**$22.30**4.1★63 rev](https://www.amazon.com/dp/B0FFSZN9ZQ) [2**BROWNYEW Inflatable Sumo Wrestling Suits inflatable Costume Kids Blow up Costume Halloween Costumes for Kids**BROWNYEW**$19.12**4.5★108 rev](https://www.amazon.com/dp/B0D9GTVT6N) [3**Morph Inflatable Sumo Wrestler Costume for Kids Inflatable Sumo Wrestling Suits For Kids Boys Halloween Costume**Morph**$43.39**4.5★162 rev](https://www.amazon.com/dp/B0CX696YG5) [4**Big Time Toys Sumo Bumper Boppers Belly Bumper Toy Set of 2 with 2 Repair Patches Kids get Active and Silly Air inflated Fun More Fun Than a Pillow Fight Great for Agility-Balance-Coordination**Big Time Toys**$19.51**4.3★381 rev](https://www.amazon.com/dp/B087YVZ81M) [5**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Red)**Threadsorcery**$22.96**4.1★63 rev](https://www.amazon.com/dp/B0FFT2K578)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Black)**Threadsorcery**$22.30**63 rev1y ago](https://www.amazon.com/dp/B0FFSZN9ZQ) [**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Red)**Threadsorcery**$22.96**63 rev1y ago](https://www.amazon.com/dp/B0FFT2K578) [**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Yellow)**Threadsorcery**$21.35**63 rev1y ago](https://www.amazon.com/dp/B0FFSZRFC2) [**JOYBRO Inflatable Sumo Wrestler Suit Costume for Kids Funny Sumo Costume for Boys and Girls Blow Up Fat Suit for Halloween Costumes Christmas Carnival Cosplay Theme Parties One Size 120-150cm**JOYBRO**$28.50**65 rev1y ago](https://www.amazon.com/dp/B0F8ZLGQ6M) [**Morph Inflatable Sumo Wrestler Costume for Kids Inflatable Red Sumo Wrestling Suits For Kids Boys Halloween Costume**Morph**$42.17**162 rev1y ago](https://www.amazon.com/dp/B0CX5RT322)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**JOYBRO Inflatable Sumo Wrestler Suit Costume for Kids Funny Sumo Costume for Boys and Girls Blow Up Fat Suit for Halloween Costumes Christmas Carnival Cosplay Theme Parties One Size 120-150cm**JOYBRO**$28.50**4.4★**▲ 1000%**](https://www.amazon.com/dp/B0F8ZLGQ6M) [**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Yellow)**Threadsorcery**$21.35**4.1★**▲ 952%**](https://www.amazon.com/dp/B0FFSZRFC2) [**Big Time Toys Sumo Bumper Boppers Belly Bumper Toy Set of 2 with 2 Repair Patches Kids get Active and Silly Air inflated Fun More Fun Than a Pillow Fight Great for Agility-Balance-Coordination**Big Time Toys**$19.51**4.3★**▲ 313%**](https://www.amazon.com/dp/B087YVZ81M) [**BANZAI: Bump N Bounce Body Bumpers A Game of Bumping & Bopping 2 Bumpers Included in Red & Blue Fun & Safe Cushion Inflatable Surface For Ages 4 and up**BANZAI**$22.46**4.2★**▲ 167%**](https://www.amazon.com/dp/B01B1X3USS) [**Threadsorcery Halloween Inflatable Sumo Costume Kids Blow Up Wrestler Suit Boys Girls (Black)**Threadsorcery**$22.30**4.1★**▲ 128%**](https://www.amazon.com/dp/B0FFSZN9ZQ)
**~~View all trending →~~**
## **What buyers say about sumo wrestling costume for kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Fun/Entertainment Experience**41%
*“Kids had fun”*
**Inflation/Deflation**8%
*“it deflates super easy”*
**Size-Overall**7%
*“Fits good”*
**Durability**7%
*“Durable and good quality”*
**Ease Of Use**6%
*“Easy to operate”*
**Gifting Purpose**4%
*“Good cheap present”*
**Value For Money**4%
*“cost was great too”*
**Weight Light**3%
*“This sumo costume is lightweight”*
**Quality-Overall**2%
*“The quality has held up for months at this point so no issues there”*
**Comfort-Overall**2%
*“comfortable way funny looks well build”*
### **What buyers complain about **
**Inflation/Deflation**21%
*“Will not stay inflated”*
**Durability**21%
*“Fell apart in the first 10 minutes”*
**Leak-Proof**9%
*“One had a Leak so we had to return”*
**Quality-Overall**8%
*“Cheap”*
**Value For Money**5%
*“They are a little cheap”*
**Product Condition**4%
*“Bought new got used”*
**Thickness**4%
*“Pretty thin,”*
**Socket/Port/Plug**4%
*“Plugs pop out to easily”*
**Size-Overall**4%
*“They were a little too big for the five and six-year-olds”*
**Stitch/Finish/Polish**2%
*“After one use a hole developed right at the seam in 2 places”*
### **Top return reasons **
**Size-Overall**30%
**Inflation/Deflation**26%
**Leak-Proof**6%
**Value For Money**5%
**Durability**5%
**Defective Material/Parts**4%
**Functionality-Overall**4%
**Product Condition**3%
**Advertised Vs Actual Product**3%
**Quality-Overall**2%
## **Common questions**
- **Is sumo wrestling costume for kids profitable to sell on Amazon United States?**
- The niche generates $42K/yr across 13 tracked products. 90-day search growth is -31.7%. Flapen's verdict: Skip it (37/100).
- **How competitive is the sumo wrestling costume for kids niche?**
- 9 brands and 21 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in sumo wrestling costume for kids?**
- Top complaints mined from reviews: Inflation/Deflation, Durability, Leak-Proof. The return rate is 5.0%.
- **When does demand for sumo wrestling costume for kids peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 29.1× the quietest.
- **What does it cost to enter the sumo wrestling costume for kids niche?**
- Listings span $19.12–$86.93; the average listing price is $33.90 (sweet spot $15–$100). The average incumbent carries 1,013 reviews — the moat a new listing must climb.
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