baby shark costume
Skip itWeak search conversion (0.7%) — this niche doesn't clear our bar today.
Avg price
Great$22.08avg listing price — sweet spot $15–$100
Competition
Great26%top-5 click share — an open shelf
Brand share
Great58%top-5 brand share — no brand owns this niche
Price range
Great$8.51–$36.72cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good998.04avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-0.2%90-day search growth — must beat 0% to launch
Returns
Bad6.2%return rate — above 6% kills the launch gate
Market size
Bad$49K$49K/yr · 338K searches
Conversion
Bad0.7%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
30 rising
Sellers
49
Top-5 brand share
58%
Open market
36%
- HSCTEK26%
- ALLAIBB10%
- Markest8%
- Rubies8%
- Pinkfong6%
- Generic6%
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 70 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Markest Onesie Unisex Adult Pajamas Animal Rose Red Shark Cosplay Costume Sleepwear L
Markest$24.104.4★1,881 rev
Rubies Baby Shark: Baby Shark Costume with Sound Chip for Toddlers Unisex Toddler
Rubies$24.504.5★5,047 rev
Shark Baby Costume Infant Animal Onesie Toddler Cosplay Boy Girl 69
HSCTEK$22.924.7★702 rev
ALLAIBB Baby Infant Shark Costumes Outfit Cotton Romper Cute Jumpsuit Hooded Outwear for Toddler Baby Boys Girls 3-24M
ALLAIBB$20.874.7★613 rev
Pinkfong Baby Shark Toddler Girls Glitter 2-Piece Knit Coverall and Headband Outfit Baby Shark Pink 3T
Pinkfong$19.324.7★334 rev
Newest
by launch date
XYJKIDSES Inflatable Shark Costume for Kids Funny Halloween Blow Up Costumes for Boys Girls Cosplay Party Suit (Blue Shark)
XYJKIDSES$36.7223 rev
XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)
XRTBMN$13.5510 rev
Spirit Halloween Toddler Pink Baby Shark Dress Costume Unisex Child Size 2T Standard Multicolor
Spirit Halloween$30.980 rev
Latnnut Newborn Clothes Infant Outfits Shark Print Short Sleeve Onesies & Pants Set Baby Boy Cotton Clothing Sets Blue 6-12 Months
Latnnut$14.9036 rev
3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink
Tstars$17.37664 rev
Trending
90-day click momentum
haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (pink Small)
haikyuu$22.193.6★
haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Large)
haikyuu$21.863.6★
XRTBMN Newborn Boy Turtle Romper Short Sleeve Waffle Striped Shark Bodysuit Summer Clothes Infant Baby Sea Animal Outfit (Blue Shark 12-18 Months)
XRTBMN$13.554.7★
Official Baby Shark 2nd Birthday Shirt - Toddler Boy or Girl Birthday Outfit Age 2 - Soft 100% Cotton Premium Party Tee - Pinkfong 4T Pink
Tstars$19.414.8★
Nickelodeon Baby Shark Girls T-Shirts and Legging Pants Set for Infant and Toddlers
Nickelodeon$24.614.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -0.2% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 67.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great fun”
“Fit well”
“Great quality costume”
“comfortable”
“dont break either”
“Great costume at a fantastic price”
“warm amd thick baby love it”
“The material is flexible. not stiff or scratchy.”
“The shark is a patch that is nice and thick, and securely adhered”
“Exactly as described”
What buyers complain about
“It was small”
“I have bought this twice both times it has come with holes in it”
“Falling apart”
“the leg straps on the inside broke”
“Unfortunately, the overall construction feels extremely cheap”
“Heads up, it gets very hot”
“Its thin and cheap”
“Zipper broke on the first wash”
“All it did was make the entire load of laundry stink”
“A bit hard”