---
title: "Mens Swimming Briefs — £63K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/mens-swimming-briefs"
last_updated: "2026-07-31T17:48:22.499Z"
locale: en
meta:
description: "Niche score 51/100 · £63K/yr market · 174K searches/yr · £16.46 avg price. A small market ($63K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · £63K/yr market · 174K searches/yr · £16.46 avg price. A small market ($63K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mens Swimming Briefs — £63K/yr Amazon UK Niche (2026) - Flapen"
---
# **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.
Market size 16Growth 52Conversion 27Competition 95Returns 23Price range 73Avg price 79Brand share 57Review moat 52Quality gap 60
**Competition**
**Incredible****20%**
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**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****71%**
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**
**Good****1,427.39**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****2.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****5.6%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****£63K**
£63K/yr · 174K searches
**Signals**[** High Returns**](https://flapen.com/research/niches?market=uk&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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**
**84**
**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.
13K8KHoliday '24Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/uk/fashion/mens-swimming-briefs/trend)
## **Top mens swimming briefs search terms**
- **jammers swimming trunks men**12K/yr+29.6%1.4% conv. - **jammers**22K/yr+23.4%0.9% conv. - **mens jammers**16K/yr+40.2%1.1% conv. - **swimming jammers for men**16K/yr+7.8%1.6% conv. - **speedo jammers mens**18K/yr-10.5%1.7% conv. - **swim jammers mens**11K/yr+44.3%0.9% conv. - **speedo jammers**12K/yr+30.4%1.2% conv. - **mens jammers swimming trunks**4K/yr+94.7%1.4% conv. - **swimming jammers**9K/yr+14.1%1.1% conv. - **mens swimming jammers**9K/yr-1.8%1.4% conv. [**All search terms **](https://flapen.com/research/uk/fashion/mens-swimming-briefs/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.
0%2%£1K4%£3K6%£4K8%£5K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS Black 3232**Speedo**£12.15**4.5★1,951 rev](https://www.amazon.co.uk/dp/B094DQPQKC) [2**SURFEASY Mens Swim Jammer Endurance Long Racing Training Swimsuit Swim Trunks Athletic Swim Jammers(Black/Gray M)**SURFEASY**£17.92**4.6★19 rev](https://www.amazon.co.uk/dp/B0G3WRCMM4) [3**Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS Black 3636**Speedo**£11.07**4.5★435 rev](https://www.amazon.co.uk/dp/B094DQ3VQT) [4**Onvous Swim Jammers for Men | Mens Athletic Swimwear Jammer | Mens Jammer for Swimming | Mens Swim Jammers - Combat - 32**Onvous**£20.52**4.4★3,615 rev](https://www.amazon.co.uk/dp/B0CKZVRD73) [5**Speedo Mens Endurance + JaMer SwiMing Trunks | Chlorine Resistance | Comfort Fit | Swim Training | FitneS True Navy 3434**Speedo**£17.23**4.5★1,951 rev](https://www.amazon.co.uk/dp/B094DQVMVD)
**~~View all top sellers →~~**
### **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**£12.28**32 rev2mo ago](https://www.amazon.co.uk/dp/B0GLPS9J28) [**WISMBOX Mens Swim Jammers & Swimming Trunks Quick Dry Fitted Swim Shorts with Drawstring for Training & Racing UPF 50+ Black**WISMBOX**£11.23**32 rev2mo ago](https://www.amazon.co.uk/dp/B0GLQ2YZBS) [**WISMBOX Mens Jammers Swimming Trunks Athletic Competitive Quick Dry Swimwear UPF 50+ Compression Swimming Shorts for Training Racing**WISMBOX**£11.47**36 rev3mo ago](https://www.amazon.co.uk/dp/B0GL8HBMTM) [**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**£5.90**19 rev4mo ago](https://www.amazon.co.uk/dp/B0GQYCPMFV) [**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**£6.02**19 rev4mo ago](https://www.amazon.co.uk/dp/B0GQYK9Q1M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WISMBOX Mens Swim Jammers & Swimming Trunks Quick Dry Fitted Swim Shorts with Drawstring for Training & Racing UPF 50+ Black**WISMBOX**£11.23**4.3★**▲ 56%**](https://www.amazon.co.uk/dp/B0GLQ2YZBS) [**WISMBOX Mens Jammers Swimming Trunks Athletic Competitive Quick Dry Swimwear UPF 50+ Compression Swimming Shorts for Training Racing**WISMBOX**£11.47**4.8★**▲ 55%**](https://www.amazon.co.uk/dp/B0GL8HBMTM) [**MY KILOMETRE Mens Swim Jammer Hydrophobic Woven Fabric Compression Swimwear Chlorine Resistant for Training Racing**MY KILOMETRE**£23.09**4.5★**▲ 55%**](https://www.amazon.co.uk/dp/B0G585BC5Q) [**WISMBOX Mens Swim Jammers & Swimming Trunks Quick Dry Fitted Swim Shorts with Drawstring for Training & Racing UPF 50+ Navy Blue**WISMBOX**£12.28**4.3★**▲ 55%**](https://www.amazon.co.uk/dp/B0GLPS9J28) [**Onvous Swim Jammers for Men | Mens Athletic Swimwear Jammer | Mens Jammer for Swimming | Mens Swim Jammers - Black - Gold Logo - 36**Onvous**£19.97**4.4★**▲ 54%**](https://www.amazon.co.uk/dp/B0BP9TPM9G)
**~~View all trending →~~**
## **What buyers say about mens swimming briefs**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**27%
*“Nice fit and smooth”*
**Quality-Overall**15%
*“Good quality and exactly as advertised”*
**Comfort-Overall**10%
*“comfortable to wear”*
**Value For Money**10%
*“Good value”*
**Material Quality**4%
*“Very thick material looks quality worth the price”*
**Exercise/Sports Suitability**3%
*“These swim shorts actually make great gym wear”*
**Shape/Style**3%
*“Overall the style”*
**Durability**2%
*“durable”*
**Stretchability/Expandability/Elasticity**2%
*“Stretchy and comfortable”*
**Color**2%
*“The colour is good”*
### **What buyers complain about **
**Size-Overall**24%
*“Ridiculously small”*
**Quality-Overall**10%
*“Poor quality”*
**Stitch/Finish/Polish**5%
*“I quality wasnt great as the stitching started coming loose after just a few weeks”*
**Color**3%
*“They do fade with time”*
**Thigh Fit**3%
*“snug on legs after hundreds of uses”*
**Thickness**3%
*“Would like a thicker material”*
**Durability**3%
*“should last a while before the chlorine rots them”*
**Ease Of Use**2%
*“is impossible to put back which eventually makes them useless :”*
**Comfort-Overall**2%
*“not so comfortable”*
**Exercise/Sports Suitability**2%
*“These are not suitable for swimmers or cyclists”*
### **Top return reasons **
**Size-Overall**83%
**Thigh Fit**3%
**Advertised Vs Actual Product**2%
**Quality-Overall**2%
**Shape/Style**1%
**Material Quality**1%
**Color**1%
**Stitch/Finish/Polish**1%
**Comfort-Overall**1%
**Functionality-Overall**1%
## **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.
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