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colonial costume girls

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High returns (11.6%) — this niche doesn't clear our bar today.

Market size 10Growth 20Conversion 8Competition 96Returns 2Price range 82Avg price 95Brand share 79Review moat 86Quality gap 42

Competition

Incredible17%

top-5 click share — an open shelf

Avg price

Incredible$25.15

avg listing price — sweet spot $15–$100

Review moat

Great287.13

avg incumbent reviews — the moat a new listing must climb

Price range

Great$9.69–$42.04

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

Brand share

Great56%

top-5 brand share — no brand owns this niche

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-10.3%

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

Market size

Bad$39K

$39K/yr · 242K searches

Conversion

Bad0.6%

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

Returns

Bad11.6%

return rate — above 6% kills the launch gate

Competition

Clicks spread well past the top 5 (17% combined) — an open shelf where new products get seen.

Brands

32 rising

Sellers

63

Top-5 brand share

56%

Open market

36%

  • ReliBeauty20%
  • Cuteshower10%
  • Aoiviss9%
  • GRACEART9%
  • BesserBay8%
  • California Costumes8%

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%2%$7784%$2K6%$2K8%$3K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 114 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.3% search growth over the last 90 days.
15K10KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Feb, Mar, Apr, May, Oct · busiest ÷ quietest = 6.3×

Reviews

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

What buyers love

Size-Overall29%

“Correct size”

Quality-Overall19%

“seems well made”

Material Quality7%

“Because the material is lightweight”

Value For Money6%

“Great value”

Advertised Vs Actual Product4%

“Just like way it was advertised”

Comfort-Overall3%

“and comfortable”

Color3%

“the colors were perfect”

Gifting Purpose2%

“Great gift”

Weight Light2%

“Good summer weight”

Washability2%

“IT WASHED WELL”

What buyers complain about

Size-Overall21%

“Too small”

Material Quality9%

“The material is thin and cheap looking”

Color6%

“It is bright green not baby blue”

Advertised Vs Actual Product4%

“Mine came with no apron as shown”

Thickness4%

“And it is quite thin”

Comfort-Overall3%

“it just wasn't comfortable with the arms being too short for her”

Quality-Overall3%

“A bit cheap”

Strap/String Quality3%

“One of the straps isnt sewn instead”

Waist Fit3%

“It was a little tight around the waist”

Print Quality3%

“It is printed polyester not cotton”

Top return reasons

Size-Overall69%
Length8%
Material Quality3%
Advertised Vs Actual Product3%
Color3%
Waist Fit2%
Value For Money1%
Quality-Overall1%
Product Condition1%
Chest Fit1%