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World Book Day Costumes Adults

Fail

Demand is soft, at -99.7% this quarter, so World Book Day Costumes Adults is a Fail.

Flapen Score
23
23 / 100
Ranks 2,433 of 2,461 Fashion niches · −25 vs the category median of 48
Market size
£77K/yr1.1M searches / yr
90-day growth
-99.7%search demand this quarter
Competition
100%top-5 click share · 4 brands · 19 sellers

Flapen Score

World Book Day Costumes Adults against its category

The dotted line is the Fashion average. Past it, World Book Day Costumes Adults is stronger. Inside it, weaker.

23Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The World Book Day Costumes Adults market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for World Book Day Costumes Adults 1.1M times last year and spent an estimated £77K. All 4 brands take every click. Flapen scores it 23 out of 100, a Fail.

01 · Demand

0.5% of searches ended in a purchase last week.

Shoppers searched for this 1.1M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 0.5% of those searches ended in a purchase. Searches in the last 90 days moved -99.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £77K a year.

Searches, last 12 months
1.1M
Growth, 90 days vs prior 90
-99.7%
Conversion, latest week
0.5%
Market size, estimated
£77Ka year
Top search term
world book day costumes adults505K searches a year

02 · Price

A sale here is worth £14.28.

Listings sell for £14.28 on average, from £9.35 to £22.50. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 0 to 100 of them. At £14.28 that is £0 to £1K a year per listing.

Average price
£14.28under the $15 to $100 sweet spot
Price range
£9.35–£22.50
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
5K–6K
Units per listing a year
0–100
Revenue per listing a year
£0–£1K
Returns
3.8%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

50% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 19.6% of listings are out of stock. The average listing ranks #198 within Nightwear, Lingerie & Underwear. It carries 527 reviews at 4.40 stars, so a new listing needs social proof before a better product.

Sponsored listings
50%
Prime listings
100%
Out of stock, average day
19.6%
Average rank
#198in Nightwear, Lingerie & Underwear
Average rating
4.40 starsAmazon United Kingdom average 4.36 stars
Average reviews
527per listing
Listings tracked
4

04 · Newcomers

Amazon counts 0 of last year's 2 launches as successful.

2 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 36 months on average, so the names here are settling in.

Launched, last 12 months
2
Successful launches
0Amazon's first-year sales bar
Average brand age
36 months

Products

Top World Book Day Costumes Adults products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 100% of clicks. A locked shelf that new listings rarely crack.

£0£19K£39K£58K£77K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

4 rising

Sellers

19

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

0%

  • PENGMAI85%
  • Zidoley5%
  • DABAOOU5%
  • Smiffys5%

Demand

World Book Day Costumes Adults search demand

Weekly searches over the year. Pick a range.

400K300KMar '26Mar '26Apr '26May '26May '26Jun '26Jul '26

Search terms

Top World Book Day Costumes Adults search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • world book day costumes adults505K/yr
  • adult world book day costumes women178K/yr
  • fancy dress costumes for world book day45K/yr
  • world book day costumes for adults55K/yr
  • adult book day costumes15K/yr
  • world book day costumes for women68K/yr
  • world book day adult costume26K/yr
  • adults world book day costume22K/yr
  • teachers world book day costumes27K/yr
  • adult world book day costumes31K/yr

Reviews and returns

What reviews say buyers love and hate about World Book Day Costumes Adults

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall15%−0.49

so it was far too long for my child

The hat however is quite small definitely not for adult or teen heads

Quality-Overall10%+0.86

not an excellent quality item

Certifications7%+0.17

isn't a licensed product

Thickness7%−0.05

the scarf very thin

Strength5%+0.21

though it felt a little flimsy

Love

Value For Money23%+2.18

Great value

Really pleased with it for the price and got complements

Good value

Quality-Overall21%+0.86

Good quality

The set is decent quality tbh

No complaints

Size-Overall12%−0.49

Accurate size

large enough for adults

The fit was very versatile because nothing is really sized

Color9%

Nice colour

The colours and overall design look fantastic and really bring the whole costume together

The colours are bright and bold, and they feel ok for basic costume props

Fun/Entertainment Experience5%+0.48

£10.99, voucher £10.44 at time of review, makes this a full of fun costume for a teen upwards

Fun

Overall, Im pleased with this purchase, as it brought a lot of joy and excitement to his dress-up time

Return

3.8% Return rate 82% Fixable by listing

Size-Overall82%██▆▁█▆

so it was far too long for my child

The hat however is quite small definitely not for adult or teen heads

Quality-Overall9%▁▁▃▁▁█

not an excellent quality item

Material Quality4%▁▁█▁▁▁
Thin4%▁▁█▁▁▁
Value For Money2%▁▁█▁▁▁

FAQ

Common World Book Day Costumes Adults questions

Answered from the same tracked data.