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world book day costumes for boys

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 0Conversion 0Competition 24Returns 70Price range 39Avg price 51Brand share 20Review moat 73Quality gap 60

Review moat

Good571.67

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.2%

return rate — above 5% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good£12.14

avg listing price — sweet spot $15–$100

Price range

Okay£5.98–£20.72

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Bad71%

top-5 click share — a locked-up shelf

Brand share

Bad92%

top-5 brand share — brand-locked demand

Market size

Bad£0

£0/yr · 1.5M searches

Growth

Bad-99.8%

90-day search growth — must beat 0% to launch

Conversion

Bad0.0%

search→purchase rate — share of searches ending in a sale

According to Flapen's Amazon United Kingdom niche tracking, world book day costumes for boys is a £0/yr Amazon United Kingdom market (1.5M searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 27/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

world book day costumes for boys market data

Units sold / yr
6K–8K
avg 0–100/product
Revenue / yr
£73K–£97K
units × avg price
Conversion rate
0.0%
Avg BSR
#699
Page quality
0%
Prime
50%
Sponsored
67%
Out of stock
7.8%
Avg brand age
38 months
Avg seller age
192 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

28

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

3%

  • shumintaojin30%
  • Peter Rabbit23%
  • Vagile22%
  • Joozmui11%
  • Rubies6%
  • Dlishka5%
  • Open — no brand owns it (1 brand, 3%)

Demand

Weekly Amazon search volume, last 21 weeks — -99.8% search growth over the last 90 days.
700K500KSpike '26Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26

Top world book day costumes for boys search terms

  • world book day costumes for boys1.2M/yr
  • book character costumes for boys29K/yr
  • kids book character costumes8K/yr
  • boys world book day costumes70K/yr
  • costumes for world book day boys9K/yr
  • world book day costume for boys7K/yr
  • world book day costumes for boys 9-1020K/yr
  • world book day costumes for boys 11-1219K/yr
  • world book day costumes boys16K/yr
  • boys book day costume7K/yr
All search terms

Top world book day costumes for boys 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%10%£020%£030%£040%£01101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)5 products missing review or click data not plotted

All 12 tracked products in this niche — three views at once, no toggling.

What buyers say about world book day costumes for boys

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

What buyers love

Size-Overall45%

“Great fit and well made”

Value For Money13%

“Really good value for money”

Quality-Overall13%

“Its really well-made”

Material Quality13%

“Nice material”

Ease Of Use3%

“was easy to fit”

Advertised Vs Actual Product3%

“Does the job”

Shape/Style2%

“the cut is perfect”

Soft Feel1%

“the material is really soft which is great for kids sleeping in them”

Machine Wash Suitability1%

“Easy to wash”

Durability1%

“still looking good after several wears”

What buyers complain about

Stitch/Finish/Polish38%

“But poor quality of stitching”

Portability25%

“you cant wear a bag over it”

Size-Overall25%

“Make sure you take the adult size as the cape was too short for me”

Top return reasons

Size-Overall78%
Quality-Overall9%
Material Quality3%
Advertised Vs Actual Product3%
Defective Material/Parts2%
Thin1%
Functionality-Overall1%
Zipper Quality1%
Adhesion/Stickiness1%
Stitch/Finish/Polish1%

Common questions

Is world book day costumes for boys profitable to sell on Amazon United Kingdom?
The niche generates £0/yr across 12 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -99.8%. Flapen's verdict: Skip it (27/100).
How competitive is the world book day costumes for boys niche?
7 brands and 28 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in world book day costumes for boys?
Top complaints mined from reviews: Stitch/Finish/Polish, Portability, Size-Overall. The return rate is 2.2%.
What does it cost to enter the world book day costumes for boys niche?
Listings span £5.98–£20.72; the average listing price is £12.14 (sweet spot $15–$100). The average incumbent carries 572 reviews — the moat a new listing must climb.