shark costume toddler
Skip itHigh returns (12.5%) — this niche doesn't clear our bar today.
Avg price
Incredible$23.58avg listing price — sweet spot $15–$100
Price range
Great$10.90–$35.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great34%top-5 click share — an open shelf
Brand share
Great59%top-5 brand share — no brand owns this niche
Review moat
Good791.03avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-4.0%90-day search growth — must beat 0% to launch
Conversion
Bad0.4%search→purchase rate — share of searches ending in a sale
Market size
Bad$6K$6K/yr · 69K searches
Returns
Bad12.5%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, shark costume toddler is a $6K/yr Amazon United States market (69K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 41/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
shark costume toddler market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $18K–$24K
- units × avg price
- Conversion rate
- 0.4%
- Avg BSR
- #1,283
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 86%
- Out of stock
- 11.8%
- Avg brand age
- 40 months
- Avg seller age
- 184 days
Competition & brand share
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.Brands
19 rising
Sellers
42
Top-5 brand share
59%
Top 20: 100%
Top-5 click share
34%
Top 20: 82%
Open market
34%
- HSCTEK18%
- EraSpooky13%
- Rubies10%
- inkArts9%
- LIOMENGZI8%
- Coskidz7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.0% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 74.7×
Top shark costume toddler search terms
- toddler shark costume28K/yr
- shark costume toddler23K/yr
- shark toddler costume10K/yr
- toddler shark costume 2t4K/yr
- toddler shark costume 3t5K/yr
Top shark costume toddler 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
LIOMENGZI Toddler Baby Boy Hooded Shark Summer Outfit Funny T-Shirt Shorts Set Infant Shark Clothes 6 12 18 Months 2T 3T(Blue Shark 12-18 Months)
LIOMENGZI$13.244.6★138 rev
Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies
inkArts$20.494.3★904 rev
Coskidz Children Shark Costume Fish Grey Pink Yellow Blue Hoodie 3t 4t Boy Girl Halloween Birthday Party (S Gray)
Coskidz$21.254.6★464 rev
HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Cosplay Blanket 4T
HSCTEK$29.994.6★270 rev
ALLAIBB Baby Infant Shark Costumes Outfit Cotton Romper Cute Jumpsuit Hooded Outwear for Toddler Baby Boys Girls 3-24M
ALLAIBB$22.284.7★613 rev
Newest
by launch date
Spirit Halloween Toddler Shark Jumpsuit Costume Soft & Stylish Features an Attached Hood Zipper Closure Unisex Child Size 3T - 4T Standard Multicolor
Spirit Halloween$29.745 rev
Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume
Newleafly$24.6415 rev
LIOMENGZI Toddler Baby Boy Hooded Shark Summer Outfit Funny T-Shirt Shorts Set Infant Shark Clothes 6 12 18 Months 2T 3T(Blue Shark 12-18 Months)
LIOMENGZI$13.24138 rev
BETTERFUN Baby Animal Hooded Romper Soft Infant Toddlers Christmas Outfits Winter Autumn Jumpsuit Shark 3-4T
BETTERFUN$21.6466 rev
HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Cosplay Blanket 4T
HSCTEK$29.99270 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 Small)
haikyuu$21.603.6★
HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16
HSCTEK$29.174.6★
HSCTEK Shark Onesie Costume Kids Toddler Baby Pajamas Pjs Clothes 345T
HSCTEK$31.674.6★
LIOMENGZI Toddler Baby Boy Hooded Shark Summer Outfit Funny T-Shirt Shorts Set Infant Shark Clothes 6 12 18 Months 2T 3T(Blue Shark 12-18 Months)
LIOMENGZI$13.244.6★
What buyers say about shark costume toddler
What buyers praise and complain about, mined from review topics.What buyers love
“Fit well”
“It is very soft and comfortable”
“quality is great”
“comfortable”
“Best Xmas gift of the year”
“Its warm”
“very easy to get on”
“Its a very fun onesie”
“Thickness is just right”
“holding up well”
What buyers complain about
“Way too small”
“I have bought this twice both times it has come with holes in it”
“it ripped 3 different times”
“Unfortunately, the overall construction feels extremely cheap”
“The seams are all coming apart”
“Its thin and cheap”
“Itchy”
“Zipper broke on the first wash”
“Product description was way off”
“The plastic button kept unsnapping”
Top return reasons
Common questions
- Is shark costume toddler profitable to sell on Amazon United States?
- The niche generates $6K/yr across 36 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -4.0%. Flapen's verdict: Skip it (41/100).
- How competitive is the shark costume toddler niche?
- 19 brands and 42 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 59% of demand.
- What do buyers complain about in shark costume toddler?
- Top complaints mined from reviews: Size-Overall, Gap/Hole, Durability. The return rate is 12.5% — above our launch gate.
- When does demand for shark costume toddler peak?
- Demand peaks in Sep–Oct; the busiest month runs 74.7× the quietest.
- What does it cost to enter the shark costume toddler niche?
- Listings span $10.90–$35.45; the average listing price is $23.58 (sweet spot $15–$100). The average incumbent carries 791 reviews — the moat a new listing must climb.