Skip to content
48

rengoku cosplay

Skip it

Weak search conversion (0.6%) — this niche doesn't clear our bar today.

Market size 8Growth 24Conversion 7Competition 80Returns 17Price range 87Avg price 95Brand share 81Review moat 78Quality gap 80

Avg price

Incredible$37.65

avg listing price — sweet spot $15–$100

Price range

Great$10.03–$62.21

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

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Great35%

top-5 click share — an open shelf

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Review moat

Great437.15

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-1.5%

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

Returns

Bad8.0%

return rate — above 6% kills the launch gate

Market size

Bad$33K

$33K/yr · 150K searches

Conversion

Bad0.6%

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

Competition

Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.

Brands

21 rising

Sellers

23

Top-5 brand share

54%

Open market

37%

  • Oikawa14%
  • IOONCHI10%
  • Buyoem10%
  • CR ROLECOS10%
  • SONGCHANGJEWELRY10%
  • Moalioi9%

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%$9836%$2K9%$3K12%$4K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 41 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.5% search growth over the last 90 days.
23K18KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 38.8×

Reviews

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

What buyers love

Quality-Overall19%

“It was a really good quality”

Size-Overall13%

“Fit eell”

Value For Money11%

“Great for the price”

Comfort-Overall10%

“really comfortable as well”

Ease Of Use5%

“easy to put on”

Color4%

“We loved the colors and style”

Soft Feel4%

“Its soft”

Stitch/Finish/Polish3%

“Great color, quality, and the stitching is nice”

Strap/String Quality2%

“came with the Belt which has a super strong Velcro to keep it in place”

Heating2%

“Its durable to heat”

What buyers complain about

Durability14%

“Does not last”

Defective Material/Parts14%

“My son was so excited just to get an item that was broken”

Size-Overall12%

“actually really long which I didnt expect”

Color5%

“Cape only had the red, no yellow”

Thickness5%

“I thought it might be too thin at first when running my hands through it”

Stretchability/Expandability/Elasticity5%

“The elastic on the skirt doesnt stretch much”

Arm Fit5%

“Size was too small in the arms”

Strap/String Quality4%

“No sleeves or straps to hold on”

Material Quality3%

“Thin material”

Quality-Overall3%

“pretty cheap quality”

Top return reasons

Size-Overall60%
Advertised Vs Actual Product6%
Defective Material/Parts5%
Sleeve Fit4%
Quality-Overall4%
Functionality-Overall4%
Color2%
Wig/Artificial Hair Quality2%
Grip2%
Waist Fit2%