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.

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.

Review moat

Great103.87

avg incumbent reviews — the moat a new listing must climb

Avg price

Great£21.25

avg listing price — sweet spot $15–$100

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Competition

Great33%

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

Good2.5%

return rate — above 5% kills the launch gate

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Conversion

Bad1.3%

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

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

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

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.

Open Trend

Top kpop demon hunters costume search terms

kpop demon hunters costume1.2M/yr -62.1%0.7% conv.
rumi costume kids834K/yr -56.2%1.4% conv.
k pop demon hunters costume959K/yr -62.8%0.8% conv.
rumi costume364K/yr -50.2%0.8% conv.
zoey kpop demon hunters costume219K/yr -67.5%0.2% conv.
demon hunters costume122K/yr -64.8%0.5% conv.
mira costume kpop demon hunters56K/yr -60.6%0.8% conv.
kpop costume46K/yr -45.3%0.7% conv.
kpop outfits45K/yr -31.1%0.1% conv.
rumi outfit36K/yr -44.3%0.9% conv.

All 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.

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

Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 7-8 Years

Rubies£21.064.2★304 rev

Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 6+ Years

Rubies£21.234.2★304 rev

Tangsenyu Printing Rumi Costume Kids Fancy Outfit Include Jacket T-shirt and Shorts

Tangsenyu£28.884.4★26 rev

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£10.890.0★0 rev

Atorcher Girls Halloween Costume Black and Yellow Polyester Top and Pants Set for Cosplay Events and Parties

Atorcher£21.174.1★39 rev

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£16.1712 rev

2mo ago

shyhand 3PCS Girls Anime Costume Kids Anime Cosplay Halloween Outfit for Fancy Party Carnival Theme Dress Up (XLarge-140cm)

shyhand£24.872 rev

2mo ago

K Pop Demon Hunters Backpack - 36cm School Bag Huntrix Merch Purple

Blue Sky Studios£25.004 rev

3mo ago

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£10.890 rev

4mo ago

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£16.5514 rev

5mo ago

What buyers say about kpop demon hunters costume

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall26%

“Overall it is a well made”

Size-Overall24%

“fits as shown in the size chart”

Advertised Vs Actual Product6%

“Better than I expected”

Value For Money6%

“Value for money”

Gifting Purpose5%

“Present”

Color3%

“Great color”

Ease Of Use3%

“has already had plenty of use”

Material Quality3%

“Its made from a comfortable material that allows for plenty of movement”

Stitch/Finish/Polish3%

“easy to adjust with some basic sewing kit”

Comfort-Overall3%

“is very comfortable”

What buyers complain about

Size-Overall23%

“It doesn't fit or look right”

Quality-Overall20%

“Very poor quality control”

Value For Money15%

“cheaper else where”

Material Quality10%

“Very cheap material”

Advertised Vs Actual Product3%

“Doesnt look anything like the pictures”

Suitability Long Hair3%

“Its pulled a huge clump of my daughters hair”

Thickness3%

“It's not overally thick”

Brightness/Shine/Glow2%

“No glitter or so ever”

Durability2%

“Broken already 2 days in”

Add-Ons/Attachments2%

“the attachments all broke on the first wear”

Top return reasons

Size-Overall72%

Quality-Overall13%

Material Quality4%

Advertised Vs Actual Product2%

Suitability Short Hair1%

Value For Money1%

Defective Material/Parts1%

Weight Heavy1%

Thin1%

Stitch/Finish/Polish1%

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.