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shark costume kids

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High returns (10.2%) — this niche doesn't clear our bar today.

Market size 20Growth 21Conversion 14Competition 63Returns 8Price range 95Avg price 95Brand share 76Review moat 67Quality gap 68

Avg price

Incredible$27.03

avg listing price — sweet spot $15–$100

Price range

Incredible$17.47–$39.99

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

Brand share

Great59%

top-5 brand share — no brand owns this niche

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good818.89

avg incumbent reviews — the moat a new listing must climb

Competition

Good47%

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

Growth

Bad-8.8%

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

Market size

Bad$81K

$81K/yr · 278K searches

Conversion

Bad1.1%

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

Returns

Bad10.2%

return rate — above 6% kills the launch gate

Competition

The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 falling

Sellers

45

Top-5 brand share

59%

Open market

36%

  • inkArts29%
  • Touchat11%
  • TBGENIUS7%
  • HSCTEK7%
  • Newleafly5%
  • JCJ5%

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%$3K8%$6K12%$10K16%$13K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 38 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.8% search growth over the last 90 days.
40K30KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 45.3×

Reviews

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

What buyers love

Soft Feel15%

“The material itself is soft and cozy, and the design is really cute”

Gifting Purpose12%

“Great gift”

Comfort-Overall12%

“comfortable”

Size-Overall11%

“Fit great”

Warmth8%

“Cozy and warm”

Quality-Overall7%

“Good quality”

Fun/Entertainment Experience5%

“It's fun for the whole family”

Value For Money4%

“the sale price was right”

Material Quality2%

“Nice material”

Advertised Vs Actual Product2%

“As described”

What buyers complain about

Size-Overall32%

“Poor fit”

Durability10%

“it kept tearing”

Quality-Overall10%

“not well made”

Gap/Hole7%

“there's two holes in it”

Stitch/Finish/Polish6%

“Weak seams”

Advertised Vs Actual Product2%

“Product description was way off”

Thickness2%

“Its thin and cheap”

Material Quality2%

“The material was very cheap”

Machine Wash Suitability1%

“Do not wash with other pieces of clothing”

Smell1%

Top return reasons

Size-Overall59%
Length13%
Gap/Hole5%
Stitch/Finish/Polish3%
Advertised Vs Actual Product3%
Material Quality3%
Arm Fit2%
Sleeve Fit1%
Shoulder Fit1%
Product Condition1%