shadow costume
Skip itWeak search conversion (0.1%) — this niche doesn't clear our bar today.
Avg price
Incredible$37.40avg listing price — sweet spot $15–$100
Price range
Incredible$19.51–$79.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great186.06avg incumbent reviews — the moat a new listing must climb
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Returns
Okay4.3%return rate — above 6% kills the launch gate
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-14.0%90-day search growth — must beat 0% to launch
Market size
Bad$20K$20K/yr · 378K searches
Conversion
Bad0.1%search→purchase rate — share of searches ending in a sale
Competition
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
9 rising
Sellers
33
Top-5 brand share
89%
Open market
7%
- Komar Kids35%
- Disguise26%
- SEGA15%
- Opposuits9%
- Spirit Halloween4%
- Loromodo4%
- Open — no brand owns it (3 brands, 7%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 33 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Shadow Kids Onesie Pajamas - Boys Long Sleeve Zip Up Hooded Blanket Sleep - One Piece Costume - Official License
Komar Kids$26.054.8★129 rev
Shadow Kids Onesie Pajamas - Boys Long Sleeve Zip Up Hooded Blanket Sleep - One Piece Costume - Official License
Komar Kids$25.594.8★129 rev
SEGA Boys Sonic The Hedgehog Shadow Costume Zip Up Fleece Hoodie - 4-20 Sweatshirt Shadow (Black) 7 US
SEGA$32.214.5★154 rev
Disguise Sonic 3 Shadow Costume Official Sonic Movie 3 Costume for Kids Large (10-12)
Disguise$29.514.6★112 rev
SEGA Boys Sonic The Hedgehog Shadow Costume Zip Up Fleece Hoodie - 4-20 Sweatshirt Shadow (Black) 10-12 US
SEGA$33.084.5★154 rev
Newest
by launch date
SEGA Sonic the Hedgehog Shadow Boys Tank Top and Mesh Shorts Set for Big Kids
SEGA$20.380 rev
SEGA Sonic the Hedgehog Shadow Boys Short Sleeve T-Shirt and Mesh Short Set for Big Kids
SEGA$19.5917 rev
SEGA Sonic the Hedgehog Shadow Boys Short Sleeve T-Shirt and Mesh Short Set for Big Kids
SEGA$19.5117 rev
Disguise Sonic Shadow Costume for Kids Officially Licensed Sonic The Hedgehog Halloween Costume Outfit Size (4-6)
Disguise$43.960 rev
Shadow Kids Onesie Pajamas - Boys Long Sleeve Zip Up Hooded Blanket Sleep - One Piece Costume - Official License
Komar Kids$26.05129 rev
Trending
90-day click momentumSEGA Sonic the Hedgehog Shadow Boys Tank Top and Mesh Shorts Set for Big Kids
SEGA$20.380.0★
Disguise Sonic Shadow Costume for Kids Officially Licensed Sonic The Hedgehog Halloween Costume Outfit Size (4-6)
Disguise$43.960.0★
SEGA Sonic the Hedgehog Shadow Boys Short Sleeve T-Shirt and Mesh Short Set for Big Kids
SEGA$19.595.0★
SEGA Sonic the Hedgehog Shadow Boys Short Sleeve T-Shirt and Mesh Short Set for Big Kids
SEGA$19.515.0★
SEGA Boys Sonic The Hedgehog Shadow Costume Zip Up Fleece Hoodie - 4-20 Sweatshirt Shadow (Black) 10-12 US
SEGA$33.084.5★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -14.0% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 24.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“The size was just right for my son”
“Good quality”
“comfortable”
“They are so soft”
“keeps her warm”
“As advertised”
“Great material”
“Durable, warm and cozy”
“easy to wash”
“Thick quality material and good fit”
What buyers complain about
“Inconsistent sizes, all one size despite what label says, too small”
“It's falls off a little too easily”
“I was worried the material would feel cheap”
“2 washes on hot. he gets dirty”