Rumi Costume
MaybeProducts sell for $22.95 on average, inside the sweet spot. But demand is soft, at -56.4% this quarter, so Rumi Costume is a Maybe.
- Flapen Score
- 54 / 100Top 19% of 1,773 Toys & Games niches · +10 vs the category median of 4454
- Market size
- £483K/yr1.3M searches / yr
- 90-day growth
- -56.4%search demand this quarter
- Competition
- 40%top-5 click share · 11 brands · 34 sellers
Flapen Score
Rumi Costume against its category
The dotted line is the Toys & Games average. Past it, Rumi Costume is stronger. Inside it, weaker.
Market
The Rumi Costume market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Rumi Costume 1.3M times last year and spent an estimated £483K. The top 5 brands take 84% of clicks. Flapen scores it 54 out of 100, a Maybe.
01 · Demand
An estimated 1.6% of those searches ended in a purchase.
Shoppers searched for this 1.3M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 1.6% of those searches ended in a purchase. Searches in the last 90 days moved -56.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £483K a year.
- Searches, last 12 months
- 1.3M
- Growth, 90 days vs prior 90
- -56.4%
- Conversion, latest week
- 1.6%
- Market size, estimated
- £483Ka year
- Top search term
- rumi costume kids834K searches a year
02 · Price
A sale here is worth £22.95.
Listings sell for £22.95 on average, from £10.60 to £31.74. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 100 to 250 of them. At £22.95 that is £2K to £6K a year per listing.
- Average price
- £22.95inside the $15 to $100 sweet spot
- Price range
- £10.60–£31.74
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £2K–£6K
- Returns
- 2.3%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
42% of listings pay for placement with sponsored ads. 97% ship with Prime. On an average day, 20.1% of listings are out of stock. The average listing ranks #201 within Fancy Dress. It carries 118 reviews at 4.08 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 42%
- Prime listings
- 97%
- Out of stock, average day
- 20.1%
- Average rank
- #201in Fancy Dress
- Average rating
- 4.08 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 118per listing
- Listings tracked
- 33
04 · Newcomers
13 of last year's 33 launches cleared the first-year sales bar.
33 products launched here in the last 12 months. 13 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 15 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 33
- Successful launches
- 13Amazon's first-year sales bar
- Average brand age
- 15 months
Products
Top Rumi Costume products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 7-8 Years
- Price
- £21.06
- Rating
- 4.2/5
- Reviews
- 304
- Age
- 9mo ago

Atorcher Girls Halloween Costume Black and Yellow Polyester Top and Pants Set for Cosplay Events and Parties
- Price
- £21.17
- Rating
- 4.1/5
- Reviews
- 39
- Age
- 10mo ago

Tangsenyu Kids Rumi Costume for Girls Halloween Outfit Include Jacket T-shirt and Shorts
- Price
- £31.74
- Rating
- 4.1/5
- Reviews
- 96
- Age
- 10mo ago

Rubies Official Netflix K-Pop Demon Hunters Rumi Child Costume Kids Fancy Dress Size Age 7-8 Years
- Price
- £20.22
- Rating
- 3.9/5
- Reviews
- 91
- Age
- 8mo ago

Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 6+ Years
- Price
- £21.23
- Rating
- 4.2/5
- Reviews
- 304
- Age
- 9mo ago
Trending
estimated 90-day click momentum
shyhand 3PCS Girls Anime Costume Kids Anime Cosplay Halloween Outfit for Fancy Party Carnival Theme Dress Up (XLarge-140cm)
- Price
- £24.87
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 2mo ago

Luchild Kids Cosplay Costume Girls Dress Up Stage Outfits with Top Coat Pants 74Pcs Stickers Kids Pop Cosplay Themed Costumes Halloween Carnival Masquerade Dress Up Party for Little Girls
- Price
- £22.22
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 11-13 Years
- Price
- £21.17
- Rating
- 4.2/5
- Reviews
- 304
- Age
- 9mo 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 (Orange 130)
- Price
- £18.76
- Rating
- 4.4/5
- Reviews
- 14
- Age
- 5mo ago

Rubies Official Netflix K-Pop Demon Hunters Deluxe Rumi Golden Child Costume Kids Fancy Dress Size Age 6+ Years
- Price
- £21.23
- Rating
- 4.2/5
- Reviews
- 304
- Age
- 9mo ago
Newest
by launch date
shyhand 3PCS Girls Anime Costume Kids Anime Cosplay Halloween Outfit for Fancy Party Carnival Theme Dress Up (XLarge-140cm)
- Price
- £24.87
- Rating
- 4.5/5
- Reviews
- 2
- Age
- 2mo ago

Luchild Kids Cosplay Costume Girls Dress Up Stage Outfits with Top Coat Pants 74Pcs Stickers Kids Pop Cosplay Themed Costumes Halloween Carnival Masquerade Dress Up Party for Little Girls
- Price
- £22.22
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

Metaparty Pop Costumes World Book Day Costumes with Top Jacket Shorts for World Book Day (Black 130)
- Price
- £17.82
- Rating
- 4.0/5
- Reviews
- 2
- Age
- 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 (Orange 130)
- Price
- £18.76
- Rating
- 4.4/5
- Reviews
- 14
- Age
- 5mo ago

nezafly Anime Cosplay Costume Kids Girls Black Stage Outfits Set Halloween
- Price
- £28.64
- Rating
- 3.0/5
- Reviews
- 17
- Age
- 5mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 40% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 rising
Sellers
34
Est. top-5 brand share
84%
Top 20: 100%
Est. top-5 click share
40%
Top 20: 83%
Open market
12%
- Rubies38%
- Tangsenyu18%
- Atorcher18%
- Kitimi7%
- shyhand4%
- Metaparty4%
- Open — no brand owns it (5 brands, 12%)
Demand
Rumi Costume search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 28.4× · 11 of 12 months tracked
Search terms
Top Rumi Costume search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- rumi costume kids834K/yr
- rumi costume364K/yr
- kpop demon hunters costume rumi63K/yr
- rumi kpop demon hunters costume78K/yr
Reviews and returns
What reviews say buyers love and hate about Rumi Costume
We read the reviews and the return reasons for every product selling here.
“It doesn't fit or look right”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
20 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Rumi Costume questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









