Skip to content
44

saiki k cosplay

Skip it

A small market ($35K/yr) — this niche doesn't clear our bar today.

Market size 9Growth 58Conversion 12Competition 36Returns 18Price range 82Avg price 95Brand share 46Review moat 46Quality gap 97

Quality gap

Incredible3.8★

avg incumbent rating — lower means beatable quality

Avg price

Incredible$26.71

avg listing price — sweet spot $15–$100

Price range

Great$9.29–$45.77

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

Growth

Good+33.3%

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

Brand share

Okay78%

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

Review moat

Okay1,868.94

avg incumbent reviews — the moat a new listing must climb

Competition

Okay64%

top-5 click share — leaders hold, buyers still browse

Returns

Bad6.9%

return rate — above 5% kills the launch gate

Conversion

Bad1.0%

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

Market size

Bad$35K

$35K/yr · 134K searches

According to Flapen's Amazon United States niche tracking, saiki k cosplay is a $35K/yr Amazon United States market (134K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 44/100.

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

saiki k cosplay market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
$27K–$33K
units × avg price
Conversion rate
1.0%
Avg BSR
#1,788
Page quality
0%
Prime
88%
Sponsored
53%
Out of stock
10.0%
Avg brand age
40 months
Avg seller age
203 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

13

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

16%

  • IMDAET37%
  • FORTMAC11%
  • Okazaki10%
  • RAINDEWLL10%
  • VNYIGDJS9%
  • Half and Half6%
  • Open — no brand owns it (5 brands, 16%)

Demand

Weekly Amazon search volume, last 36 weeks — +33.3% search growth over the last 90 days.
8K6KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26

Top saiki k cosplay search terms

  • saiki k cosplay101K/yr
  • saiki cosplay9K/yr
  • saki k cosplay7K/yr
  • saiki k costume17K/yr
All search terms

Top saiki k cosplay 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%$4K20%$7K30%$11K40%$14K1101001K10K100K 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 17 tracked products in this niche — three views at once, no toggling.

What buyers say about saiki k cosplay

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

What buyers love

Warmth24%

“Good for cold days relaxing at home”

Comfort-Overall10%

“Comfortable”

Size-Overall10%

“Fits well”

Quality-Overall6%

“I was surprised by the quality of these socks”

Material Quality6%

“Cozy and good material”

Value For Money6%

“Good for the price”

Shape/Style4%

“Its a really pretty pattern”

Advertised Vs Actual Product3%

“Exactly as pictured”

Soft Feel2%

“Super soft and cozy i recommend this brand”

Thigh Fit2%

“Big thigh approved”

What buyers complain about

Thigh Fit20%

“Tight on the thighs”

Size-Overall14%

“Does not run true to size”

Thickness5%

“Thick”

Quality-Overall4%

“Cheap”

Material Quality3%

“Worst piece of cloth I even bought”

Value For Money3%

“Literally waste of my money”

Strength3%

“the glasses were flimsy”

Durability3%

“the little balls broke”

Product Condition3%

“clearly not new”

Stretchability/Expandability/Elasticity3%

“It doesn't have enough elastic support at the top”

Top return reasons

Size-Overall28%
Length23%
Thigh Fit12%
Material Quality8%
Advertised Vs Actual Product5%
Quality-Overall3%
Thin2%
Value For Money2%
Thickness2%
Wig/Artificial Hair Quality1%

Common questions

Is saiki k cosplay profitable to sell on Amazon United States?
The niche generates $35K/yr across 17 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +33.3%. Flapen's verdict: Skip it (44/100).
How competitive is the saiki k cosplay niche?
11 brands and 13 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in saiki k cosplay?
Top complaints mined from reviews: Thigh Fit, Size-Overall, Thickness. The return rate is 6.9% — above our launch gate.
What does it cost to enter the saiki k cosplay niche?
Listings span $9.29–$45.77; the average listing price is $26.71 (sweet spot $15–$100). The average incumbent carries 1,869 reviews — the moat a new listing must climb.