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36

charizard costume

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A small market ($7K/yr) — this niche doesn't clear our bar today.

Market size 2Growth 29Conversion 3Competition 60Returns 13Price range 90Avg price 95Brand share 39Review moat 88Quality gap 33

Avg price

Incredible$45.77

avg listing price — sweet spot $15–$100

Price range

Great$17.63–$105.90

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

Review moat

Great246.61

avg incumbent reviews — the moat a new listing must climb

Competition

Good49%

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

Brand share

Okay82%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+3.3%

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

Returns

Bad9.0%

return rate — above 6% kills the launch gate

Conversion

Bad0.2%

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

Market size

Bad$7K

$7K/yr · 71K searches

Competition

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

48

Top-5 brand share

82%

Open market

12%

  • Disguise30%
  • CuteCosplay19%
  • Komar Kids16%
  • SAZAC10%
  • Pokémon7%
  • COSUSKET6%
  • Open — no brand owns it (6 brands, 12%)

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%5%$35810%$71515%$1K20%$1K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 28 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.3% search growth over the last 90 days.
23K18KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 50.5×

Reviews

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

What buyers love

Size-Overall14%

“Size is true to fit”

Comfort-Overall12%

“its very comfortable”

Quality-Overall11%

“The onesie is made well”

Durability10%

“it didnt feel like it was going to be torn apart”

Material Quality10%

“is made of a nice warm material”

Soft Feel7%

“The fabric feels soft and comfortable, perfect for sleeping or lounging around the house”

Warmth5%

“They are warm and soft,”

Upholstery/Fabric Quality3%

“Great fabric, missing a pee hole”

Design-Overall3%

“The design is bright, fun, and instantly recognizable, making bedtime way more exciting for kids who love Pokémon”

Value For Money3%

“Definitely a good value for the money”

What buyers complain about

Size-Overall23%

“Its a little bigger than I anticipated”

Material Quality13%

“I think the material is pretty cheap and thin”

Sweat Resistance10%

“would not recommend wearing it all day or you will be sweating buckets”

Thin6%

“Thin material”

Thickness5%

“thin”

Residue5%

“Machine mashing creates pilling”

Value For Money3%

“The price seems a little high to me”

Top return reasons

Size-Overall70%
Length9%
Thigh Fit3%
Sleeve Fit3%
Material Quality2%
Thin2%
Arm Fit1%
Advertised Vs Actual Product1%
Product Condition1%
Quality-Overall1%