Skip to content

Shark Fin Swimming Aid

Maybe

Products sell for $17.50 on average, inside the sweet spot. But shoppers spend only $6K a year here, so Shark Fin Swimming Aid is a Maybe.

Flapen Score
50
50 / 100
Ranks 386 of 792 Sports & Outdoors niches · on the category median
Market size
£6K/yr18K searches / yr
90-day growth
+72.1%search demand this quarter
Competition
52%top-5 click share · 16 brands · 34 sellers

Flapen Score

Shark Fin Swimming Aid against its category

The dotted line is the Sports & Outdoors average. Past it, Shark Fin Swimming Aid is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Shark Fin Swimming Aid market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Shark Fin Swimming Aid 18K times last year and spent an estimated £6K. The top 5 brands take 75% of clicks. Demand peaks in Jul–Aug. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

1.8% of searches ended in a purchase last week.

Shoppers searched for this 18K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 1.8% of those searches ended in a purchase. Searches in the last 90 days moved +72.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £6K a year.

Searches, last 12 months
18K
Growth, 90 days vs prior 90
+72.1%
Conversion, latest week
1.8%
Market size, estimated
£6Ka year
Peak month
August3.0× the quietest month
Top search term
shark fin swimming aid11K searches a year

02 · Price

A sale here is worth £17.50.

Listings sell for £17.50 on average, from £7.94 to £27.10. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At £17.50 that is £0 to £2K a year per listing.

Average price
£17.50inside the $15 to $100 sweet spot
Price range
£7.94–£27.10
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
250–500
Units per listing a year
0–100
Revenue per listing a year
£0–£2K
Returns
3.0%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

84% of listings pay for placement with sponsored ads. 97% ship with Prime. On an average day, 1.8% of listings are out of stock. The average listing ranks #155 within Water Sports. It carries 1,790 reviews at 4.28 stars, so a new listing needs social proof before a better product.

Sponsored listings
84%
Prime listings
97%
Out of stock, average day
1.8%
Average rank
#155in Water Sports
Average rating
4.28 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,790per listing
Listings tracked
32

04 · Newcomers

Amazon counts 0 of last year's 8 launches as successful.

8 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 48 months on average, so the names here are settling in.

Launched, last 12 months
8
Successful launches
0Amazon's first-year sales bar
Average brand age
48 months

Products

Top Shark Fin Swimming Aid products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 52% of clicks. Leaders hold, but buyers still shop past them.

£0£287£574£861£1K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

16 rising

Sellers

34

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

52%

Top 20: 88%

Open market

19%

  • Sarini35%
  • Speedo13%
  • QcoQce11%
  • Azuunye10%
  • MARU7%
  • Vegena6%

Demand

Shark Fin Swimming Aid search demand

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

1K600Spike '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 3.0×

Search terms

Top Shark Fin Swimming Aid search terms shoppers use

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

  • shark fin swimming aid11K/yr
  • swim fin4K/yr
  • swimfin3K/yr

Reviews and returns

What reviews say buyers love and hate about Shark Fin Swimming Aid

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall26%+0.77

A little small

which felt a bit tight

just a little bit to big

Durability13%−0.24

Clip broke

Clip broke after only two sessions in the pool

Ripped after 3 weeks

Quality-Overall10%−0.06

Poor quality fins

Poor quality

were expected better quality and durability

Value For Money7%−0.09

expensive

These are expensive for child flippers. 25

Not worth the money

Comfort-Overall7%+0.15

My son said they felt really uncomfortable

Love

Size-Overall20%+0.77

Perfect fit

True to size

fit well according to size. including the range of size as mentioned

Comfort-Overall11%+0.15

Comfortable

They are comfortable to wear

Was comfortable and packed flat too

Quality-Overall9%−0.06

However they are very well made

Great Quality Product

They are good quality

Color9%+0.97

The colours are really nice and bright

I love the colour of them first and foremost

They are very colourful and vibrant

Fun/Entertainment Experience7%+0.78

Keeps the little one happy

Fun flippers for active kids

lots of fun

Return

3.0% Return rate 86% Fixable by listing

Size-Overall82%█▇██▇█

A little small

which felt a bit tight

just a little bit to big

Functionality-Overall2%▁▁▃▅▄█
Quality-Overall2%▁▁█▃▂▁

Poor quality fins

Poor quality

were expected better quality and durability

Strength2%█▆▁▄▄▆
Durability2%

Clip broke

Clip broke after only two sessions in the pool

Ripped after 3 weeks

FAQ

Common Shark Fin Swimming Aid questions

Answered from the same tracked data.