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49

ash ketchum costume adult

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High returns (10.5%) — this niche doesn't clear our bar today.

Market size 29Growth 40Conversion 10Competition 77Returns 6Price range 77Avg price 95Brand share 66Review moat 66Quality gap 67

Avg price

Incredible$26.10

avg listing price — sweet spot $15–$100

Competition

Great38%

top-5 click share — an open shelf

Price range

Great$7.01–$42.08

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good66%

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

Review moat

Good844.48

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+12.1%

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

Market size

Okay$126K

$126K/yr · 610K searches

Conversion

Bad0.8%

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

Returns

Bad10.5%

return rate — above 6% kills the launch gate

Competition

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

25 rising

Sellers

38

Top-5 brand share

66%

Open market

30%

  • Dunsuns22%
  • GIZMAC16%
  • Ohoo11%
  • KASOYA9%
  • MINIBBYY8%
  • My Party Shirt5%

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%4%$5K8%$10K12%$15K16%$20K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 42 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +12.1% search growth over the last 90 days.
125K75KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 39.6×

Reviews

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

What buyers love

Quality-Overall26%

“Good quality for cosplay”

Size-Overall25%

“Fit well”

Advertised Vs Actual Product12%

“As advertised”

Material Quality6%

“Material and quality is good too”

Value For Money5%

“a good value”

Durability5%

“its held up so well that even our three-year-old takes turns wearing it”

Gifting Purpose4%

“Great gift for a kiddo who likes to dress up”

Comfort-Overall3%

“decently comfortable”

Stitch/Finish/Polish2%

“Well stitched”

Weight Light2%

“The hoodie is lightweight”

What buyers complain about

Size-Overall46%

“Didnt fit me in properly”

Quality-Overall17%

“Garbage”

Stitch/Finish/Polish3%

“stitches are already coming apart on the front of the hat”

Smell3%

“My hat arrived USED with a terrible smell”

Product Condition3%

“Not a new hat”

Feet Fit2%

“A little long in the legs”

Sleeve Fit2%

“Sleeves were way too tight”

Arm Fit2%

“Skinny arm sleeves”

Top return reasons

Size-Overall72%
Quality-Overall4%
Advertised Vs Actual Product3%
Sleeve Fit3%
Arm Fit2%
Material Quality2%
Length2%
Shoulder Fit2%
Shape/Style2%
Chest Fit1%