---
title: "Kpop Demon Hunters Costume — £1.1M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/kpop-demon-hunters-costume"
last_updated: "2026-07-31T09:03:38.301Z"
locale: en
meta:
description: "Niche score 58/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · £1.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Kpop Demon Hunters Costume — £1.1M/yr Amazon UK Niche (2026) - Flapen"
---
# **kpop demon hunters costume**
**Worth a look**
Shows a thin review moat (104 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 80Growth 0Conversion 16Competition 82Returns 63Price range 72Avg price 91Brand share 45Review moat 95Quality gap 86
**Review moat**
**Great****103.87**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****£21.25**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Competition**
**Great****33%**
top-5 click share — an open shelf
**Market size**
**Great****£1.1M**
£1.1M/yr · 4.1M searches
**Price range**
**Good****£8.34–£32.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-58.7%**
90-day search growth — must beat 0% to launch
**Signals**[** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United Kingdom niche tracking, kpop demon hunters costume is a £1.1M/yr Amazon United Kingdom market (4.1M searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 58/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kpop demon hunters costume market data**
- **Units sold / yr**
- **30K–40K**
- avg 250–500/product
- **Revenue / yr**
- **£638K–£850K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#213**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **49%**
- **Out of stock**
- **18.1%**
- **Avg brand age**
- **21 months**
- **Avg seller age**
- **199 days**
## **Competition & brand share**
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.
**Brands**
**16 **▲rising
**Sellers**
**38**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**33%**
Top 20: 66%
**Open market**
**18%**
- Rubies37% - Atorcher14% - Tangsenyu11% - Kitimi10% - KPop Demon Hunters5% - Heartsking4%
## **Demand**
Weekly Amazon search volume, last 45 weeks — -58.7% search growth over the last 90 days.
400K300KSpike '25Spike '26Sep '25Nov '25Dec '25Feb '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/uk/toys-games/kpop-demon-hunters-costume/trend)
## **Top kpop demon hunters costume search terms**
- **kpop demon hunters costume**1.2M/yr-62.1%0.7% conv. - **rumi costume kids**834K/yr-56.2%1.4% conv. - **k pop demon hunters costume**959K/yr-62.8%0.8% conv. - **rumi costume**364K/yr-50.2%0.8% conv. - **zoey kpop demon hunters costume**219K/yr-67.5%0.2% conv. - **demon hunters costume**122K/yr-64.8%0.5% conv. - **mira costume kpop demon hunters**56K/yr-60.6%0.8% conv. - **kpop costume**46K/yr-45.3%0.7% conv. - **kpop outfits**45K/yr-31.1%0.1% conv. - **rumi outfit**36K/yr-44.3%0.9% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/kpop-demon-hunters-costume/search-terms)
## **Top kpop demon hunters costume 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%4%£45K8%£89K12%£134K16%£178K1101001K 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**Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 7-8 Years**Rubies**£21.06**4.2★304 rev](https://www.amazon.co.uk/dp/B0FVLVZ9QP) [2**Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 6+ Years**Rubies**£21.23**4.2★304 rev](https://www.amazon.co.uk/dp/B0FVY4S9B5) [3**Tangsenyu Printing Rumi Costume Kids Fancy Outfit Include Jacket T-shirt and Shorts**Tangsenyu**£28.88**4.4★26 rev](https://www.amazon.co.uk/dp/B0G1XH2CX9) [4**Heartsking K Pop Tshirt Girls Tshirt with Handbag Set Short Sleeve Girls T-Shirts K Pop Merch Clothes Gifts for Kids 5-12 Year**Heartsking**£10.89**0.0★0 rev](https://www.amazon.co.uk/dp/B0GSHQL9CJ) [5**Atorcher Girls Halloween Costume Black and Yellow Polyester Top and Pants Set for Cosplay Events and Parties**Atorcher**£21.17**4.1★39 rev](https://www.amazon.co.uk/dp/B0FR8V9ZBJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**KPop Demon Hunters Swimsuit Girls Swimming Costume Huntrix Girls Swimming Costumes One Piece with Scrunchie Purple 7-8 Years**KPop Demon Hunters**£16.17**12 rev2mo ago](https://www.amazon.co.uk/dp/B0H2B6YPLX) [**shyhand 3PCS Girls Anime Costume Kids Anime Cosplay Halloween Outfit for Fancy Party Carnival Theme Dress Up (XLarge-140cm)**shyhand**£24.87**2 rev2mo ago](https://www.amazon.co.uk/dp/B0H149VK9G) [**K Pop Demon Hunters Backpack - 36cm School Bag Huntrix Merch Purple**Blue Sky Studios**£25.00**4 rev3mo ago](https://www.amazon.co.uk/dp/B0G5ZBWFWB) [**Heartsking K Pop Tshirt Girls Tshirt with Handbag Set Short Sleeve Girls T-Shirts K Pop Merch Clothes Gifts for Kids 5-12 Year**Heartsking**£10.89**0 rev4mo ago](https://www.amazon.co.uk/dp/B0GSHQL9CJ) [**K-p0p D-Dem0n H-Hunters Costume Kids Girls Ani-me H-Hunters Outfits Pop Singers Coat Top Shorts Dance Stage Role Play Outfit Shorts & T-Shirt Christmas Carnival Dress Up Party Cosplay (Black 150)**JIASHA**£16.55**14 rev5mo ago](https://www.amazon.co.uk/dp/B0GQ9X2QF3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**KPop Demon Hunters Swimsuit Girls Swimming Costume Huntrix Girls Swimming Costumes One Piece with Scrunchie Purple 7-8 Years**KPop Demon Hunters**£16.17**4.0★**▲ 200%**](https://www.amazon.co.uk/dp/B0H2B6YPLX) [**Heartsking K Pop Tshirt Girls Tshirt with Handbag Set Short Sleeve Girls T-Shirts K Pop Merch Clothes Gifts for Kids 5-12 Year**Heartsking**£10.89**0.0★**▲ 199%**](https://www.amazon.co.uk/dp/B0GSHQL9CJ) [**shyhand 3PCS Girls Anime Costume Kids Anime Cosplay Halloween Outfit for Fancy Party Carnival Theme Dress Up (XLarge-140cm)**shyhand**£24.87**4.5★**▲ 199%**](https://www.amazon.co.uk/dp/B0H149VK9G) [**K Pop Demon Hunters Backpack - 36cm School Bag Huntrix Merch Purple**Blue Sky Studios**£25.00**4.7★**▲ 198%**](https://www.amazon.co.uk/dp/B0G5ZBWFWB) [**K-p0p D-Dem0n H-Hunters Costume Kids Girls Ani-me H-Hunters Outfits Pop Singers Coat Top Shorts Dance Stage Role Play Outfit Shorts & T-Shirt Christmas Carnival Dress Up Party Cosplay (Orange 130)**JIASHA**£18.76**4.4★**▲ 177%**](https://www.amazon.co.uk/dp/B0GQ9W9VCF)
**~~View all trending →~~**
## **What buyers say about kpop demon hunters costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Overall it is a well made”*
**Size-Overall**24%
*“fits as shown in the size chart”*
**Advertised Vs Actual Product**6%
*“Better than I expected”*
**Value For Money**6%
*“Value for money”*
**Gifting Purpose**5%
*“Present”*
**Color**3%
*“Great color”*
**Ease Of Use**3%
*“has already had plenty of use”*
**Material Quality**3%
*“Its made from a comfortable material that allows for plenty of movement”*
**Stitch/Finish/Polish**3%
*“easy to adjust with some basic sewing kit”*
**Comfort-Overall**3%
*“is very comfortable”*
### **What buyers complain about **
**Size-Overall**23%
*“It doesn't fit or look right”*
**Quality-Overall**20%
*“Very poor quality control”*
**Value For Money**15%
*“cheaper else where”*
**Material Quality**10%
*“Very cheap material”*
**Advertised Vs Actual Product**3%
*“Doesnt look anything like the pictures”*
**Suitability Long Hair**3%
*“Its pulled a huge clump of my daughters hair”*
**Thickness**3%
*“It's not overally thick”*
**Brightness/Shine/Glow**2%
*“No glitter or so ever”*
**Durability**2%
*“Broken already 2 days in”*
**Add-Ons/Attachments**2%
*“the attachments all broke on the first wear”*
### **Top return reasons **
**Size-Overall**72%
**Quality-Overall**13%
**Material Quality**4%
**Advertised Vs Actual Product**2%
**Suitability Short Hair**1%
**Value For Money**1%
**Defective Material/Parts**1%
**Weight Heavy**1%
**Thin**1%
**Stitch/Finish/Polish**1%
## **Common questions**
- **Is kpop demon hunters costume profitable to sell on Amazon United Kingdom?**
- The niche generates £1.1M/yr across 47 tracked products. 15 of 47 products launched in the last 360 days are still selling. 90-day search growth is -58.7%. Flapen's verdict: Worth a look (58/100).
- **How competitive is the kpop demon hunters costume niche?**
- 16 brands and 38 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in kpop demon hunters costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 2.5%.
- **What does it cost to enter the kpop demon hunters costume niche?**
- Listings span £8.34–£32.21; the average listing price is £21.25 (sweet spot $15–$100). The average incumbent carries 104 reviews — the moat a new listing must climb.
## **Related niches in Toys & Games**
- 69 [**bug hunting kits for children**](https://flapen.com/research/uk/toys-games/bug-hunting-kits-for-children)£112K/yr+112.3%**Worth a look**- 69 [**lilo**](https://flapen.com/research/uk/toys-games/lilo)£392K/yr+604.6%**Worth a look**- 69 [**toys for 1 year old boys**](https://flapen.com/research/uk/toys-games/toys-for-1-year-old-boys)£1.9M/yr+8.5%**Launch it**- 70 [**remote control boat**](https://flapen.com/research/uk/toys-games/remote-control-boat)£245K/yr+82.2%**Worth a look**- 70 [**sand pit**](https://flapen.com/research/uk/toys-games/sand-pit)£246K/yr+75.0%**Worth a look**- 71 [**tanning pool**](https://flapen.com/research/uk/toys-games/tanning-pool)£291K/yr>1,000%**Worth a look**[**All Toys & Games niches **](https://flapen.com/research/uk/toys-games)