Is mens swimming briefs profitable to sell on Amazon United Kingdom?

The niche generates £63K/yr across 97 tracked products. 0 of 26 products launched in the last 360 days are still selling. 90-day search growth is +23.3%. Flapen's verdict: Worth a look (51/100).

How competitive is the mens swimming briefs niche?

20 brands and 84 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 71% of demand.

What do buyers complain about in mens swimming briefs?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Stitch/Finish/Polish. The return rate is 5.6% — above our launch gate.

When does demand for mens swimming briefs peak?

Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.

What does it cost to enter the mens swimming briefs niche?

Listings span £5.90–£39.93; the average listing price is £16.46 (sweet spot $15–$100). The average incumbent carries 1,427 reviews — the moat a new listing must climb.

mens swimming briefs

Worth a look

Shows a fragmented shelf (top 5 take 20% of clicks), but a small market ($63K/yr) keeps it on the watch list.

Competition

Incredible20%

top-5 click share — an open shelf

Avg price

Great£16.46

avg listing price — sweet spot $15–$100

Price range

Good£5.90–£39.93

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Good71%

top-5 brand share — brands hold most of the demand

Growth

Good+23.3%

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

Review moat

Good1,427.39

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay2.2%

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

Returns

Bad5.6%

return rate — above 5% kills the launch gate

Market size

Bad£63K

£63K/yr · 174K searches

Signals High Returns

According to Flapen's Amazon United Kingdom niche tracking, mens swimming briefs is a £63K/yr Amazon United Kingdom market (174K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 51/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

mens swimming briefs market data

Units sold / yr: 3K–3K; avg 0–100/product
Revenue / yr: £41K–£49K; units × avg price
Conversion rate: 2.2%
Avg BSR: #24
Page quality: 0%
Prime: 99%
Sponsored: 84%
Out of stock: 5.2%
Avg brand age: 39 months
Avg seller age: 172 days

Competition & brand share

Clicks spread well past the top 5 (20% combined) — an open shelf where new products get seen.

Brands

20 rising

Sellers

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

20%

Top 20: 49%

Open market

24%

Speedo30%
MY KILOMETRE14%
Onvous12%
WISMBOX9%
SURFEASY6%
ADUDVLO5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +23.3% search growth over the last 90 days.

Peak months: Jul, Aug · busiest ÷ quietest = 1.9×

Open Trend

Top mens swimming briefs search terms

jammers swimming trunks men12K/yr +29.6%1.4% conv.
jammers22K/yr +23.4%0.9% conv.
mens jammers16K/yr +40.2%1.1% conv.
swimming jammers for men16K/yr +7.8%1.6% conv.
speedo jammers mens18K/yr -10.5%1.7% conv.
swim jammers mens11K/yr +44.3%0.9% conv.
speedo jammers12K/yr +30.4%1.2% conv.
mens jammers swimming trunks4K/yr +94.7%1.4% conv.
swimming jammers9K/yr +14.1%1.1% conv.
mens swimming jammers9K/yr -1.8%1.4% conv.

All search terms

Top mens swimming briefs 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

Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS Black 3232

Speedo£12.154.5★1,951 rev

SURFEASY Mens Swim Jammer Endurance Long Racing Training Swimsuit Swim Trunks Athletic Swim Jammers(Black/Gray M)

SURFEASY£17.924.6★19 rev

Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS Black 3636

Speedo£11.074.5★435 rev

Onvous Swim Jammers for Men | Mens Athletic Swimwear Jammer | Mens Jammer for Swimming | Mens Swim Jammers - Combat - 32

Onvous£20.524.4★3,615 rev

Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS True Navy 3434

Speedo£17.234.5★1,951 rev

Newest

by launch date

WISMBOX Mens Swim Jammers & Swimming Trunks Quick Dry Fitted Swim Shorts with Drawstring for Training & Racing UPF 50+ Navy Blue

WISMBOX£12.2832 rev

2mo ago

WISMBOX Mens Swim Jammers & Swimming Trunks Quick Dry Fitted Swim Shorts with Drawstring for Training & Racing UPF 50+ Black

WISMBOX£11.2332 rev

2mo ago

WISMBOX Mens Jammers Swimming Trunks Athletic Competitive Quick Dry Swimwear UPF 50+ Compression Swimming Shorts for Training Racing

WISMBOX£11.4736 rev

3mo ago

ADUDVLO Swimming Jammers for Men Solid Quick Dry Chlorine Resistant Training Swimwear with Drawstring Competitive Pool Swim Shorts (UK Alpha S Regular Regular Black)

ADUDVLO£5.9019 rev

4mo ago

ADUDVLO Swimming Jammers for Men Solid Quick Dry Chlorine Resistant Training Swimwear with Drawstring Competitive Pool Swim Shorts (UK Alpha L Regular Regular Black)

ADUDVLO£6.0219 rev

4mo ago

What buyers say about mens swimming briefs

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

What buyers love

Size-Overall27%

“Nice fit and smooth”

Quality-Overall15%

“Good quality and exactly as advertised”

Comfort-Overall10%

“comfortable to wear”

Value For Money10%

“Good value”

Material Quality4%

“Very thick material looks quality worth the price”

Exercise/Sports Suitability3%

“These swim shorts actually make great gym wear”

Shape/Style3%

“Overall the style”

Durability2%

“durable”

Stretchability/Expandability/Elasticity2%

“Stretchy and comfortable”

Color2%

“The colour is good”

What buyers complain about

Size-Overall24%

“Ridiculously small”

Quality-Overall10%

“Poor quality”

Stitch/Finish/Polish5%

“I quality wasnt great as the stitching started coming loose after just a few weeks”

Color3%

“They do fade with time”

Thigh Fit3%

“snug on legs after hundreds of uses”

Thickness3%

“Would like a thicker material”

Durability3%

“should last a while before the chlorine rots them”

Ease Of Use2%

“is impossible to put back which eventually makes them useless :”

Comfort-Overall2%

“not so comfortable”

Exercise/Sports Suitability2%

“These are not suitable for swimmers or cyclists”

Top return reasons

Size-Overall83%

Thigh Fit3%

Advertised Vs Actual Product2%

Quality-Overall2%

Shape/Style1%

Material Quality1%

Color1%

Stitch/Finish/Polish1%

Comfort-Overall1%

Functionality-Overall1%

Common questions

Is mens swimming briefs profitable to sell on Amazon United Kingdom?: The niche generates £63K/yr across 97 tracked products. 0 of 26 products launched in the last 360 days are still selling. 90-day search growth is +23.3%. Flapen's verdict: Worth a look (51/100).
How competitive is the mens swimming briefs niche?: 20 brands and 84 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 71% of demand.
What do buyers complain about in mens swimming briefs?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Stitch/Finish/Polish. The return rate is 5.6% — above our launch gate.
When does demand for mens swimming briefs peak?: Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.
What does it cost to enter the mens swimming briefs niche?: Listings span £5.90–£39.93; the average listing price is £16.46 (sweet spot $15–$100). The average incumbent carries 1,427 reviews — the moat a new listing must climb.