Is shark swim trunks men profitable to sell on Amazon United States?

The niche generates $178K/yr across 150 tracked products. 9 of 15 products launched in the last 360 days are still selling. 90-day search growth is +66.4%. Flapen's verdict: Worth a look (50/100).

How competitive is the shark swim trunks men niche?

17 brands and 51 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 93% of demand.

What do buyers complain about in shark swim trunks men?

Top complaints mined from reviews: Size-Overall, Strength, Material Quality. The return rate is 7.8% — above our launch gate.

When does demand for shark swim trunks men peak?

Demand peaks in Jun–Jul; the busiest month runs 6.3× the quietest.

What does it cost to enter the shark swim trunks men niche?

Listings span $12.70–$79.43; the average listing price is $42.83 (sweet spot $15–$100). The average incumbent carries 1,624 reviews — the moat a new listing must climb.

shark swim trunks men

Worth a look

Shows a fragmented shelf (top 5 take 15% of clicks), but weak search conversion (0.4%) keeps it on the watch list.

Competition

Incredible15%

top-5 click share — an open shelf

Avg price

Incredible$42.83

avg listing price — sweet spot $15–$100

Price range

Great$12.70–$79.43

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

Growth

Great+66.4%

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

Review moat

Okay1,623.77

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$178K

$178K/yr · 945K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Bad93%

top-5 brand share — brand-locked demand

Returns

Bad7.8%

return rate — above 5% kills the launch gate

Conversion

Bad0.4%

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

Signals High Returns

According to Flapen's Amazon United States niche tracking, shark swim trunks men is a $178K/yr Amazon United States market (945K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 50/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

shark swim trunks men market data

Units sold / yr: 5K–6K; avg 0–100/product
Revenue / yr: $214K–$257K; units × avg price
Conversion rate: 0.4%
Avg BSR: #124
Page quality: 0%
Prime: 95%
Sponsored: 96%
Out of stock: 3.2%
Avg brand age: 37 months
Avg seller age: 160 days

Competition & brand share

Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.

Brands

17 rising

Sellers

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

15%

Top 20: 41%

Open market

Chubbies64%
maamgic17%
SURF CUZ6%
Sixfish4%
Amazon Essentials3%
Gleeease3%
Open — no brand owns it (11 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +66.4% search growth over the last 90 days.

Peak months: Jun, Jul · busiest ÷ quietest = 6.3×

Open Trend

Top shark swim trunks men search terms

chubbies swim trunks357K/yr +49.2%0.3% conv.
chubbies179K/yr +68.7%0.2% conv.
chubbies shorts for men166K/yr +87.0%0.5% conv.
chubbies shorts45K/yr +120.6%0.4% conv.
chubbies swim trunks men41K/yr +65.8%0.3% conv.
chubbies swim trunks 7 inch25K/yr +116.8%0.3% conv.
mens chubbies swim trunks28K/yr +50.0%0.2% conv.
chubbies swim trunks 5.5 inch17K/yr +62.4%0.3% conv.
chubbies 7 inch swim trunks8K/yr +431.3%0.3% conv.
pineapple swim trunks men17K/yr +61.2%0.3% conv.

All search terms

Top shark swim trunks men 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

maamgic Mens Swim Trunks with Compression Liner 5 Inch Quick Dry Bathing Suit with Zipper Pockets Stretch No-Chafing Swim Shorts Pink-Palm Pineapple Medium

maamgic$28.004.7★4,894 rev

Chubbies Chino Shorts Men 7 Inch - Mens Shorts Casual with Elastic Waistband Side and Back Pockets Stretch Cotton Blend (The Travertines Large)

Chubbies$51.984.1★456 rev

Chubbies Mens Swim Trunks Mens Swim Shorts with 4-Way Stretch 7 Beach Shorts with Elastic Waist Drawstring Mesh Lining UPF 50+ Light Blue with Flamingos L

Chubbies$54.194.6★476 rev

Chubbies Everywear Mens Shorts Mens Shorts Casual 6in Inseam Elastic Waist Water-Resistant Zipper Pocket (Khakinators Medium)

Chubbies$58.054.6★522 rev

Chubbies Mens Swim Trunks Mens Swim Shorts with 4-Way Stretch 5.5 Beach Shorts with Elastic Waist Drawstring Mesh Lining UPF 50+ (The Glades Medium)

Chubbies$56.314.7★1,320 rev

Newest

by launch date

Sixfish Mens Swim Trunks with Compression Liner 7 Inch 2 in 1 Quick Dry Soft Board Shorts with Zipper Pockets for Beach Vacation Pool Parties

Sixfish$20.89113 rev

4mo ago

Chubbies Chino Shorts Men 5.5 inch - Mens Shorts Casual with Elastic Waistband Side and Back Pockets Stretch Cotton Blend (Dunes X-Small)

Chubbies$47.071,150 rev

1y ago

Chubbies Mens Swim Trunks 5.5 Lined Classic 4-Way Stretch Mens Shorts Board Shorts with Built-in Boxer Brief Liner The Apex Swimmers Medium

Chubbies$60.8680 rev

1y ago

Chubbies Mens Swim Trunks Mens Swim Shorts with 4-Way Stretch 5.5 Beach Shorts with Elastic Waist Drawstring Mesh Lining UPF 50+ (The Havana Nights Large)

Chubbies$56.591,320 rev

2y ago

Chubbies Mens Swim Trunks Mens Swim Shorts with 4-Way Stretch 5.5 Beach Shorts with Elastic Waist Drawstring Mesh Lining UPF 50+ (The Toucan Do Its Small)

Chubbies$34.751,320 rev

2y ago

What buyers say about shark swim trunks men

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

What buyers love

Size-Overall28%

“it was to the size”

Comfort-Overall15%

“Extremely comfortable”

Quality-Overall13%

“Construction quality is just fine”

Material Quality4%

“Very nice material”

Color4%

“The colors are beautiful”

Value For Money3%

“Worth ever penny”

Advertised Vs Actual Product3%

“As depicted”

Pockets/Compartments2%

“The zipper pockets are a genuinely useful feature”

Soft Feel2%

“Soft”

Lining Quality2%

“I appreciate the tighter liner”

What buyers complain about

Size-Overall18%

“Tight fit”

Strength4%

“Won't stay up”

Material Quality4%

“lightweight just the material seems cheap”

Stretchability/Expandability/Elasticity4%

“One concern is that the liner material is not elastic or stretchy so compression liner is not accurate”

Transparency4%

“The fabric isnt see-through when wet”

Value For Money3%

“a touch expensive”

Compression3%

“No Compression”

Print Quality3%

“The print on the inside legs”

Color3%

“Don't buy Grey”

Stitch/Finish/Polish2%

“Poor-quality stitching”

Top return reasons

Size-Overall57%

Length11%

Waist Fit10%

Hip Fit4%

Color4%

Thigh Fit3%

Advertised Vs Actual Product2%

Material Quality2%

Inseam Fit2%

Shape/Style1%

Common questions

Is shark swim trunks men profitable to sell on Amazon United States?: The niche generates $178K/yr across 150 tracked products. 9 of 15 products launched in the last 360 days are still selling. 90-day search growth is +66.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the shark swim trunks men niche?: 17 brands and 51 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in shark swim trunks men?: Top complaints mined from reviews: Size-Overall, Strength, Material Quality. The return rate is 7.8% — above our launch gate.
When does demand for shark swim trunks men peak?: Demand peaks in Jun–Jul; the busiest month runs 6.3× the quietest.
What does it cost to enter the shark swim trunks men niche?: Listings span $12.70–$79.43; the average listing price is $42.83 (sweet spot $15–$100). The average incumbent carries 1,624 reviews — the moat a new listing must climb.