shark costume kids
Skip itHigh returns (10.2%) — this niche doesn't clear our bar today.
Avg price
Incredible$27.03avg listing price — sweet spot $15–$100
Price range
Incredible$17.47–$39.99cheapest 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
Good818.89avg 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 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, shark costume kids is a $81K/yr Amazon United States market (278K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 45/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
shark costume kids market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- $108K–$135K
- units × avg price
- Conversion rate
- 1.1%
- Avg BSR
- #1,554
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 14.9%
- Avg brand age
- 40 months
- Avg seller age
- 190 days
Competition & brand share
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%
Top 20: 94%
Top-5 click share
47%
Top 20: 81%
Open market
36%
- inkArts29%
- Touchat11%
- TBGENIUS7%
- HSCTEK7%
- Newleafly5%
- JCJ5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.8% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 45.3×
Top shark costume kids search terms
- shark costume kids150K/yr
- kids shark costume49K/yr
- shark costume for kids12K/yr
- disfraz de tiburon nio5K/yr
- shark custom kids5K/yr
- shark kids costume8K/yr
- kid shark costume7K/yr
- boys shark costume10K/yr
- shark costume kids 10-126K/yr
- shark costumes for kids5K/yr
Top shark costume kids products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies
inkArts$20.494.3★904 rev
Touchat Shark Blanket for Adult & Kids Super Soft Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Hoodie Sleeping Bag Cosplay Shark Costume Blanket Gifts for Shark Lovers (Blue M)
Touchat$18.124.5★1,252 rev
inkArts Shark Blanket Hoodie - Adult Shark Sleeping Bag & Cozy Flannel Hoodie
inkArts$20.134.2★4,873 rev
TBGENIUS Shark Blanket Hoodie Onesie for Adults and Kids Cozy Flannel Shark Costume Shark Sleeping Bag
TBGENIUS$17.744.0★213 rev
HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16
HSCTEK$29.174.6★270 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
TBGENIUS Shark Blanket Hoodie Onesie for Adults and Kids Cozy Flannel Shark Costume Shark Sleeping Bag
TBGENIUS$17.74213 rev
Morph Shark Costume Kids Halloween Costume Boys and Girls Small
Morph$37.26115 rev
Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume
Newleafly$24.0315 rev
Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume
Newleafly$24.6415 rev
Trending
90-day click momentumXYJKIDSES Inflatable Shark Costume for Kids Funny Halloween Blow Up Costumes for Boys Girls Cosplay Party Suit (Blue Shark)
XYJKIDSES$36.724.9★
haikyuu Kid Shark Costume Grey Pink Yellow Blue Fish Hoodie Boy Girl Halloween Birthday Party Dress Up (blue Small)
haikyuu$21.603.6★
HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16
HSCTEK$29.174.6★
Shark Blanket Hoodie Kid Wearable Shark Blanket Shark Sleeping Bag Soft Cozy Warm Flannel Hoodie Sharks Blankets Onesie Kids(XS)
inkArts$27.824.2★
Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume
Newleafly$24.034.1★
What buyers say about shark costume kids
What buyers praise and complain about, mined from review topics.What buyers love
“The material itself is soft and cozy, and the design is really cute”
“Great gift”
“comfortable”
“Fit great”
“Cozy and warm”
“Good quality”
“It's fun for the whole family”
“the sale price was right”
“Nice material”
“As described”
What buyers complain about
“Poor fit”
“it kept tearing”
“not well made”
“there's two holes in it”
“Weak seams”
“Product description was way off”
“Its thin and cheap”
“The material was very cheap”
“Do not wash with other pieces of clothing”
Top return reasons
Common questions
- Is shark costume kids profitable to sell on Amazon United States?
- The niche generates $81K/yr across 38 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -8.8%. Flapen's verdict: Skip it (45/100).
- How competitive is the shark costume kids niche?
- 26 brands and 45 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in shark costume kids?
- Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 10.2% — above our launch gate.
- When does demand for shark costume kids peak?
- Demand peaks in Sep–Oct; the busiest month runs 45.3× the quietest.
- What does it cost to enter the shark costume kids niche?
- Listings span $17.47–$39.99; the average listing price is $27.03 (sweet spot $15–$100). The average incumbent carries 819 reviews — the moat a new listing must climb.