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39

wonder woman costume for girls

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High returns (13.6%) — this niche doesn't clear our bar today.

Market size 18Growth 22Conversion 20Competition 85Returns 0Price range 76Avg price 95Brand share 25Review moat 66Quality gap 40

Avg price

Incredible$23.77

avg listing price — sweet spot $15–$100

Competition

Great30%

top-5 click share — an open shelf

Price range

Great$8.85–$35.41

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

Review moat

Good859.73

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay90%

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

Growth

Bad-6.6%

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

Conversion

Bad1.6%

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

Market size

Bad$70K

$70K/yr · 188K searches

Returns

Bad13.6%

return rate — above 6% kills the launch gate

Competition

Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.

Brands

13 rising

Sellers

42

Top-5 brand share

90%

Open market

8%

  • Rubies32%
  • WARNER BROS26%
  • DC Comics14%
  • INTIMO13%
  • WB4%
  • Seven Times Six3%
  • Open — no brand owns it (7 brands, 8%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%3%$2K6%$4K9%$6K12%$8K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 52 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 11 weeks — -6.6% search growth over the last 90 days.
2K2KApr '26May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26

Reviews

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

What buyers love

Quality-Overall32%

“Good quality”

Size-Overall25%

“The size is accurate one size fits all”

Gifting Purpose7%

“Gift”

Washability7%

“They absolutely love it easy on washing due to blue part tutu”

Color4%

“Bright colors and cute design”

Exercise/Sports Suitability3%

“perfect for my walk a thon”

Value For Money3%

“The price point is really great for what you get”

Design-Overall3%

“Bright colors and cute design”

Shrinkage Resistance2%

“Does not shrink”

Material Quality2%

“The material is good quality”

What buyers complain about

Size-Overall32%

“Cute just runs a little short”

Durability14%

“Tore 2nd wear”

Product Condition11%

“Super used costume”

Quality-Overall11%

“Cheap quality”

Material Quality8%

“The material is very cheep”

Thickness5%

“Very thin”

Upholstery/Fabric Quality5%

“Not what I was expecting the fabric is not good quality”

Value For Money4%

“its not worth the money”

Add-Ons/Attachments2%

“Not size appropriate with the accessories”

Wrinkles2%

“It was wrinkled up in that area sort of odd”

Top return reasons

Size-Overall76%
Product Condition4%
Advertised Vs Actual Product3%
Length3%
Quality-Overall2%
Material Quality2%
Chest Fit2%
Defective Material/Parts2%
Value For Money1%
Waist Fit1%