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Shark Fin

Maybe

Products sell for $24.04 on average, inside the sweet spot. But an estimated 6.9% of orders come back, so Shark Fin is a Maybe.

Flapen Score
58
58 / 100
Top 8% of 16,930 Clothing, Shoes & Jewelry niches · +13 vs the category median of 45
Market size
$75K/yr111K searches / yr
90-day growth
+97.0%search demand this quarter
Competition
47%top-5 click share · 23 brands · 33 sellers

Flapen Score

Shark Fin against its category

The dotted line is the Clothing, Shoes & Jewelry average. Past it, Shark Fin is stronger. Inside it, weaker.

58Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Shark Fin market on Amazon at a glance

Shoppers on Amazon United States searched for Shark Fin 111K times last year and spent an estimated $75K. The top 5 brands take 61% of clicks. Demand peaks in Jul–Oct. Flapen scores it 58 out of 100, a Maybe.

01 · Demand

An estimated 2.8% of those searches ended in a purchase.

Shoppers searched for this 111K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.8% of those searches ended in a purchase. Searches in the last 90 days moved +97.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $75K a year.

Searches, last 12 months
111K
Growth, 90 days vs prior 90
+97.0%
Conversion, latest week
2.8%
Market size, estimated
$75Ka year
Peak month
October12.2× the quietest month
Top search term
shark fin63K searches a year

02 · Price

A sale here is worth $24.04.

Listings sell for $24.04 on average, from $7.86 to $74.78. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At $24.04 that is $2K to $6K a year per listing.

Average price
$24.04inside the $15 to $100 sweet spot
Price range
$7.86–$74.78
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
4K–5K
Units per listing a year
100–250
Revenue per listing a year
$2K–$6K
Returns
6.9%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

85% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 4.3% of listings are out of stock. The average listing ranks #1,286 within Boys. It carries 755 reviews at 4.31 stars, so a new listing needs social proof before a better product.

Sponsored listings
85%
Prime listings
94%
Out of stock, average day
4.3%
Average rank
#1,286in Boys
Average rating
4.31 starsAmazon United States average 4.42 stars
Average reviews
755per listing
Listings tracked
34

04 · Newcomers

1 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 48 months on average, so the names here are settling in.

Launched, last 12 months
4
Successful launches
1Amazon's first-year sales bar
Average brand age
48 months

Products

Top Shark Fin products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 10, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 47% of clicks. Leaders hold, but buyers still shop past them.

$0$4K$7K$11K$15K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

23 rising

Sellers

33

Est. top-5 brand share

61%

Top 20: 97%

Est. top-5 click share

47%

Top 20: 84%

Open market

35%

  • Fin Fun22%
  • Foyinbet15%
  • Civaner9%
  • Fun Express9%
  • Holyzuel6%
  • Prsca4%

Demand

Shark Fin search demand

Weekly searches over the year, seasonality beneath. Pick a range.

13K8KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Oct · busiest ÷ quietest = 12.2×

Search terms

Top Shark Fin search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • shark fin63K/yr
  • shark fin for pool10K/yr
  • shark fins10K/yr
  • shark fin for swimming9K/yr
  • shark fin costume12K/yr
  • shark costume accessories6K/yr

Reviews and returns

What reviews say buyers love and hate about Shark Fin

We read the reviews and the return reasons for every product selling here.

26%of positive reviews mention “Size-Overall”
38%of negative reviews mention “Size-Overall”
6.9%of orders come back
“Didnt fit my car even though it said it would fit my car”
A buyer, on “Size-Overall”38% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

20 topics

NegativePositive

FAQ

Common Shark Fin questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data