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the deep costume

Skip it

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

Market size 0Growth 100Conversion 0Competition 20Returns 0Price range 95Avg price 93Brand share 19Review moat 95Quality gap 95

Growth

Incredible>1,000%

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

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Review moat

Great102.19

avg incumbent reviews — the moat a new listing must climb

Price range

Incredible$15.60–$82.18

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

Avg price

Great$49.16

avg listing price — sweet spot $15–$100

Competition

Bad76%

top-5 click share — a locked-up shelf

Brand share

Bad92%

top-5 brand share — brand-locked demand

Market size

Bad$0

$0/yr · 44K searches

Conversion

Bad0.0%

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

Returns

Bad13.9%

return rate — above 5% kills the launch gate

According to Flapen's Amazon United States niche tracking, the deep costume is a $0/yr Amazon United States market (44K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in May–Oct–Nov. Verdict: Skip it — 44/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

the deep costume market data

Units sold / yr
100–250
avg 0–100/product
Revenue / yr
$5K–$12K
units × avg price
Conversion rate
0.0%
Avg BSR
#5,106
Page quality
0%
Prime
31%
Sponsored
50%
Out of stock
16.1%
Avg brand age
44 months
Avg seller age
196 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

10

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

5%

  • Fun Costumes44%
  • QAHEART27%
  • Puruuige13%
  • Tonainy5%
  • Firecos4%
  • Yearntown3%
  • Open — no brand owns it (3 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — >1,000% search growth over the last 90 days.
7K5KSpike '25Spike '26NovDecFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: May, Oct, Nov · busiest ÷ quietest = 97.8×

Top the deep costume 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★)1 product missing review or click data not plotted

All 16 tracked products in this niche — three views at once, no toggling.

What buyers say about the deep costume

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

What buyers love

Quality-Overall100%

“nice quality”

What buyers complain about

Size-Overall100%

“The top is kind of tight”

Top return reasons

Size-Overall48%
Shoulder Fit9%
Waist Fit7%
Material Quality7%
Length4%
Chest Fit4%
Advertised Vs Actual Product3%
Comfort-Overall3%
Hip Fit3%
Stretchability/Expandability/Elasticity2%

Common questions

Is the deep costume profitable to sell on Amazon United States?
The niche generates $0/yr across 16 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is >1,000%. Flapen's verdict: Skip it (44/100).
How competitive is the the deep costume niche?
9 brands and 10 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in the deep costume?
Top complaints mined from reviews: Size-Overall. The return rate is 13.9% — above our launch gate.
When does demand for the deep costume peak?
Demand peaks in May–Oct–Nov; the busiest month runs 97.8× the quietest.
What does it cost to enter the the deep costume niche?
Listings span $15.60–$82.18; the average listing price is $49.16 (sweet spot $15–$100). The average incumbent carries 102 reviews — the moat a new listing must climb.