---
title: "Karate Kid Costume — $2K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/karate-kid-costume"
last_updated: "2026-08-12T19:38:52.599Z"
locale: en
meta:
description: "Amazon product research for karate kid costume: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for karate kid costume: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Karate Kid Costume — $2K/mo Amazon US Product Research"
---
# **Karate Kid Costume**
**Skip it**
A small market ($30K/yr) — this niche doesn't clear our bar today.
Market size 7Growth 18Conversion 21Competition 91Returns 11Price range 83Avg price 95Brand share 93Review moat 63Quality gap 62
**Avg price**
**Incredible****$29.36**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****42%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****24%**
top-5 click share — an open shelf
**Price range**
**Great****$7.19–$58.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****977.63**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-14.9%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****8.8%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$30K**
$30K/yr · 61K searches
**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%")
## **Is karate kid costume profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, karate kid costume is a $30K/yr Amazon United States market (61K searches/yr). The top 5 brands hold 42% 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)
## **karate kid costume market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$15K–$22K**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#1,063**
- **Page quality**
- **0%**
- **Prime**
- **75%**
- **Sponsored**
- **77%**
- **Out of stock**
- **10.9%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **193 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.
**Brands**
**37 **▲rising
**Sellers**
**66**
**Top-5 brand share**
**42%**
Top 20: 86%
**Top-5 click share**
**24%**
Top 20: 60%
**Open market**
**53%**
- Elite Sports14% - NAMAZU11% - Hawk Sports7% - Rubies5% - ULTIMATE FIGHT GEAR5% - Treyrea5%
## **karate kid costume demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -14.9% search growth over the last 90 days.
10K6KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 24.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/karate-kid-costume/trend)
## **Top karate kid costume search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **karate costume**15K/yr-13.2%0.5% conv. - **karate kid costume**33K/yr-21.2%0.5% conv. - **karate kid costume adult**9K/yr+26.5%0.9% conv. - **karate costume kids**4K/yr-33.9%1.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/karate-kid-costume/search-terms)
## **Top karate kid costume 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%2%$5924%$1K6%$2K8%$2K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hawk Sports Karate Uniform Lightweight Karate Gi with Belt for Kids and Adults Ideal for Martial Arts Training and Sparring Durable Training Gear Size 4 (56/150lbs)**Hawk Sports**$32.78**4.4★4,796 rev](https://www.amazon.com/dp/B07NKTQBLG) [2**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★5,654 rev](https://www.amazon.com/dp/B08B3YTGWB) [3**NAMAZU Karate Uniform for Kids and Adult Lightweight Karate Gi Student Uniform with Belt for Martial Arts training - White**NAMAZU**$25.23**4.4★1,750 rev](https://www.amazon.com/dp/B07LBDLCBV) [4**NAMAZU Karate Uniform for Kids and Adult Lightweight Karate Gi Student Uniform with Belt for Martial Arts training - White**NAMAZU**$24.99**4.4★1,750 rev](https://www.amazon.com/dp/B07LBD1VL5) [5**JUST YEARN Karate Gi Lightweight Karate Uniform for Kids and Adults Martial Arts Training Suit with Free Belt**JUST YEARN**$24.51**4.4★432 rev](https://www.amazon.com/dp/B0BL2HSTSM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Oxdrala Adult Taekwondo Costume Karate Uniform Men with Belt Fullset (US Alpha Large Regular Regular red)**Oxdrala**$37.01**3 rev1y ago](https://www.amazon.com/dp/B0FF4SWLNM) [**Fashionjoy Men Karate Gi Costume Sleeveless Uniform Halloween Cosplay with Headband Full Set Outfits XL**Fashionjoy**$21.25**5 rev1y ago](https://www.amazon.com/dp/B0F53JJQCW) [**MSMAX Karate Gi for Kids Students Martial Arts Training Uniform with Belt for Judo and Karate Taekwondo Jiu Jitsu 000**MSMAX**$22.20**50 rev1y ago](https://www.amazon.com/dp/B0F1N1RZXR) [**Rubies Karate Kid: Cobra Kai Costume Gi for Adults Mens Large**Rubies**$40.86**3 rev1y ago](https://www.amazon.com/dp/B0DPRFZQ4F) [**Rubies Karate Kid: Miyage-do Costume Gi for Adults Mens XL**Rubies**$39.76**0 rev1y ago](https://www.amazon.com/dp/B0DPRD8CHP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Rubies Karate Kid: Miyage-do Costume Gi for Adults Mens XL**Rubies**$39.76**0.0★**▲ 365%**](https://www.amazon.com/dp/B0DPRD8CHP) [**Hawk Sports Karate Uniform Lightweight Karate Gi with Belt for Kids and Adults Ideal for Martial Arts Training and Sparring Durable Training Gear Size 4 (56/150lbs)**Hawk Sports**$32.78**4.4★**▲ 344%**](https://www.amazon.com/dp/B07NKTQBLG) [**Agile Dragon Karate Uniform for Kids & Adults Lightweight Student Karate Gi Martial Arts Uniform black with Belt (White 7)**Agile Dragon**$21.06**4.3★**▲ 343%**](https://www.amazon.com/dp/B0DLJ2MNLQ) [**Elite Sports Bjj Gi for Men - Brazilian Jiu Jitsu Gi - Preshrunk sweat wicking Fabric - Machine washable - Free white Belt**Elite Sports**$58.11**4.7★**▲ 342%**](https://www.amazon.com/dp/B088VXRLSZ) [**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★**▲ 342%**](https://www.amazon.com/dp/B08B3YTGWB)
**~~View all trending →~~**
## **What reviews say buyers love and hate about karate kid costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**27%
*“true to size”*
**Quality-Overall**19%
*“Great quality for the pricing”*
**Material Quality**9%
*“Good material”*
**Durability**6%
*“doesn't ever tear”*
**Value For Money**6%
*“Worth the money”*
**Comfort-Overall**6%
*“comfortable”*
**Weight Light**5%
*“a lot lighter than I anticipated”*
**Color**2%
*“I love the color”*
**Shrinkage Resistance**2%
*“Does not shrink”*
**Breathability**1%
*“Its breathable enough to keep kids comfortable during long practices”*
### **What buyers complain about **
**Size-Overall**42%
*“Size runs SMALL”*
**Value For Money**4%
*“Priced for a reason”*
**Advertised Vs Actual Product**4%
*“Not same like in the kobra kai series”*
**Material Quality**4%
*“Thin materia and the fit is not right”*
**Product Condition**3%
*“supposedly brand new”*
**Thin**2%
*“Thin material”*
**Quality-Overall**2%
*“Ill buy a higher quality one once she decides if shes sticking to it”*
**Suitability Hot Weather**1%
*“The material is light on hot gym days”*
**Hard Feel**1%
*“Not quite as soft as I though it would be”*
**Length**1%
*“They were a little long”*
### **Top return reasons **
**Size-Overall**81%
**Material Quality**3%
**Color**3%
**Advertised Vs Actual Product**3%
**Thin**2%
**Length**2%
**Value For Money**1%
**Sleeve Fit**1%
**Quality-Overall**1%
**Waist Fit**1%
## **Common karate kid costume questions**
- **Is karate kid costume profitable to sell on Amazon United States?**
- The niche generates $30K/yr across 79 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -14.9%. Flapen's verdict: Skip it (48/100).
- **How competitive is the karate kid costume niche?**
- 37 brands and 66 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 42% of demand.
- **What do buyers complain about in karate kid costume?**
- Top complaints mined from reviews: Size-Overall, Value For Money, Advertised Vs Actual Product. The return rate is 8.8% — above our launch gate.
- **When does demand for karate kid costume peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 24.5× the quietest.
- **What does it cost to enter the karate kid costume niche?**
- Listings span $7.19–$58.11; the average listing price is $29.36 (sweet spot $15–$100). The average incumbent carries 978 reviews — the moat a new listing must climb.
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