Is swim fins profitable to sell on Amazon United States?

The niche generates $911K/yr across 65 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -7.4%. Flapen's verdict: Worth a look (51/100).

How competitive is the swim fins niche?

19 brands and 41 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 58% of demand.

What do buyers complain about in swim fins?

Top complaints mined from reviews: Size-Overall, Durability, Comfort-Overall. The return rate is 10.0% — above our launch gate.

When does demand for swim fins peak?

Demand peaks in Jan–Nov; the busiest month runs 2.4× the quietest.

What does it cost to enter the swim fins niche?

Listings span $17.97–$75.38; the average listing price is $33.07 (sweet spot $15–$100). The average incumbent carries 4,280 reviews — the moat a new listing must climb.

swim fins

Worth a look

Shows a sweet-spot price point ($33.07 avg), but high returns (10.0%) keeps it on the watch list.

Avg price

Incredible$33.07

avg listing price — sweet spot $15–$100

Price range

Incredible$17.97–$75.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Great27%

top-5 click share — an open shelf

Brand share

Great58%

top-5 brand share — no brand owns this niche

Market size

Great$911K

$911K/yr · 4.3M searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Bad4,280.03

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-7.4%

90-day search growth — must beat 0% to launch

Conversion

Bad0.6%

search→purchase rate — share of searches ending in a sale

Returns

Bad10.0%

return rate — above 5% kills the launch gate

Signals No Dominant Brand High Returns

According to Flapen's Amazon United States niche tracking, swim fins is a $911K/yr Amazon United States market (4.3M searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Jan–Nov. Verdict: Worth a look — 51/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

swim fins market data

Units sold / yr: 13K–15K; avg 100–250/product
Revenue / yr: $413K–$496K; units × avg price
Conversion rate: 0.6%
Avg BSR: #11
Page quality: 0%
Prime: 100%
Sponsored: 85%
Out of stock: 1.6%
Avg brand age: 66 months
Avg seller age: 167 days

Competition & brand share

Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.

Brands

19 falling

Sellers

Top-5 brand share

58%

Top 20: 100%

Top-5 click share

27%

Top 20: 63%

Open market

34%

CAPAS15%
CRESSI13%
FINIS11%
Greatever11%
Foyinbet8%
MELUMILU8%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.4% search growth over the last 90 days.

Peak months: Jan, Nov · busiest ÷ quietest = 2.4×

Open Trend

Top swim fins search terms

fin3.1M/yr -30.1%0.0% conv.
swim fins180K/yr +58.1%0.9% conv.
fins119K/yr +52.7%0.7% conv.
flippers96K/yr +107.1%0.8% conv.
swim fins adult95K/yr +52.5%1.1% conv.
swimming fins87K/yr +56.1%0.9% conv.
fins for swimming adult87K/yr +68.4%1.0% conv.
snorkel fins82K/yr +27.4%1.0% conv.
diving fins82K/yr +41.8%0.4% conv.
flippers for snorkeling44K/yr +51.2%1.2% conv.

All search terms

Top swim fins 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MELUMILU Snorkel Fins Swim Fins Travel Size Short Adjustable for Snorkeling Diving Adult Men Women Open Heel Swimming Flippers (Black)

MELUMILU$23.154.5★159 rev

CAPAS Snorkel Fins Swim Fins Travel Size Short Adjustable for Snorkeling Diving Adult Men Women Kids Open Heel Swimming Flippers

CAPAS$28.384.5★10,490 rev

Greatever Snorkel Fins Adjustable Buckles Open Heel Swim Flippers Travel Size Short Swim Fins for Snorkeling Diving Swimming Adult Men Womens

Greatever$27.834.5★6,037 rev

Speedo Unisex-Adult Swim Training Fins Rubber Long Blade

Speedo$26.734.4★6,205 rev

FINIS Long Floating Swim Fins - Adult Training Fins - Improves Kick Technique & Body Position - Red/Blue - M

FINIS$37.354.5★11,132 rev

Newest

by launch date

Cressi Star Short Adjustable Open Heel Fins Black/Black L/XL

CRESSI$45.41253 rev

6mo ago

MELUMILU Snorkel Fins Swim Fins Travel Size Short Adjustable for Snorkeling Diving Adult Men Women Open Heel Swimming Flippers (Black)

MELUMILU$23.15159 rev

1y ago

Foyinbet Kids Swim Fins Short Youth Fins Swimming Flippers for Lap Swimming and Training for Children Girls Boys 4XS

Foyinbet$24.481,707 rev

2y ago

Sporti Adult-Kids Long Swim Fins Floating Fin for Swimming & Snorkeling Swim Flippers for Training - BlueNavy - M 8-9 / W 9-10

Sporti$35.47462 rev

2y ago

Foyinbet Kids Swim Fins Short Youth Flippers Swimming Training Fins for Lap Swimming and Training for Children Girls Boys Beginners XS

Foyinbet$28.851,707 rev

3y ago

What buyers say about swim fins

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall24%

“Fits as advertised”

Quality-Overall15%

“The quality is clear”

Comfort-Overall8%

“So comfortable”

Water Resistance8%

“are effective in helping them in the water”

Exercise/Sports Suitability5%

“Works great for swim team”

Value For Money5%

“Worth it”

Ease Of Use5%

“Quick and easy”

Fun/Entertainment Experience3%

“These are so fun”

Durability3%

“they've been durable”

Weight Light2%

“These fins are said to be lightweight”

What buyers complain about

Size-Overall22%

“They dont fit correctly”

Durability15%

“Broke right away”

Comfort-Overall6%

“then these may be uncomfortable”

Product Condition5%

“Arrived used”

Stiffness5%

“* Not much thrust”

Strap/String Quality4%

“Flippers: a clip that holds the strap broke first time using them”

Ease Of Use3%

“Difficult to use”

Quality-Overall3%

“or it if this pair is just poorly made”

Water Resistance2%

“Then it was hard to get them to latch again in the water”

Ease Of Cleaning2%

“Was clearly dirty”

Top return reasons

Size-Overall83%

Advertised Vs Actual Product3%

Comfort-Overall2%

Value For Money2%

Product Condition2%

Pockets/Compartments1%

Functionality-Overall1%

Quality-Overall1%

Weight Heavy1%

Material Quality1%

Common questions

Is swim fins profitable to sell on Amazon United States?: The niche generates $911K/yr across 65 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -7.4%. Flapen's verdict: Worth a look (51/100).
How competitive is the swim fins niche?: 19 brands and 41 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 58% of demand.
What do buyers complain about in swim fins?: Top complaints mined from reviews: Size-Overall, Durability, Comfort-Overall. The return rate is 10.0% — above our launch gate.
When does demand for swim fins peak?: Demand peaks in Jan–Nov; the busiest month runs 2.4× the quietest.
What does it cost to enter the swim fins niche?: Listings span $17.97–$75.38; the average listing price is $33.07 (sweet spot $15–$100). The average incumbent carries 4,280 reviews — the moat a new listing must climb.