---
title: "Running Underwear Men — £169K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/running-underwear-men"
last_updated: "2026-07-31T13:10:00.293Z"
locale: en
meta:
description: "Niche score 56/100 · £169K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · £169K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Running Underwear Men — £169K/yr Amazon UK Niche (2026) - Flapen"
---
# **running underwear men**
**Worth a look**
Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 35Growth 56Conversion 29Competition 88Returns 99Price range 78Avg price 95Brand share 19Review moat 23Quality gap 50
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****£23.08**
avg listing price — sweet spot $15–$100
**Competition**
**Great****27%**
top-5 click share — an open shelf
**Price range**
**Great****£7.69–£41.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+29.8%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£169K**
£169K/yr · 311K searches
**Conversion**
**Okay****2.4%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****7,435.67**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, running underwear men is a £169K/yr Amazon United Kingdom market (311K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 56/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **running underwear men market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **£138K–£185K**
- units × avg price
- **Conversion rate**
- **2.4%**
- **Avg BSR**
- **#66**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **62%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.
**Brands**
**14 **▲rising
**Sellers**
**37**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**27%**
Top 20: 59%
**Open market**
**6%**
- Under Armour46% - DANISH ENDURANCE39% - IGOLUMON3% - Liang Rou2% - Reebok2% - STEP ONE2% - Open — no brand owns it (8 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +29.8% search growth over the last 90 days.
15K10KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/uk/fashion/running-underwear-men/trend)
## **Top running underwear men search terms**
- **under armour boxers**118K/yr+31.8%3.3% conv. - **danish endurance underwear**61K/yr+27.6%1.0% conv. - **mens sports underwear**13K/yr+19.8%0.4% conv. - **under armour boxerjock**11K/yr+56.1%2.0% conv. - **underarmour boxers for men**17K/yr-17.1%2.9% conv. - **sports underwear men**11K/yr+31.6%0.9% conv. - **under armour underwear mens**9K/yr+53.9%2.3% conv. - **danish endurance boxers**8K/yr+68.3%0.8% conv. - **sports boxers men**8K/yr+39.5%1.3% conv. - **mens under armour boxers**8K/yr+55.5%2.1% conv. [**All search terms **](https://flapen.com/research/uk/fashion/running-underwear-men/search-terms)
## **Top running underwear 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.
0%3%£5K6%£10K9%£15K12%£20K101001K10K100K 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**Under Armour Mens 3-Pack Performance Tech Boxer Brief with 6 Inseam Breathable Moisture Wicking Soft Touch All-Day Comfort Black Black M**Under Armour**£18.64**4.7★612 rev](https://www.amazon.co.uk/dp/B0CBKZXP1K) [2**Under Armour Mens 3-Pack Performance Tech Mesh Boxer Brief 6 Inseam Breathable Moisture Wicking Soft Touch All-Day Comfort Black L**Under Armour**£17.99**4.7★345 rev](https://www.amazon.co.uk/dp/B0CBKZQ316) [3**DANISH ENDURANCE Running Boxers Men Anti Chafing Underwear Long Leg or Regular Sports Boxers 3 Pack Multicolour (1x Black 1x Blue 1x Green) XL**DANISH ENDURANCE**£20.46**4.4★18,064 rev](https://www.amazon.co.uk/dp/B0953GN71H) [4**Under Armour Mens Performance Tech 9-inch Boxerjock Multi-Pack Black Solid - Core 3 Pack XL**Under Armour**£21.75**4.6★10,293 rev](https://www.amazon.co.uk/dp/B0C2FYX27Z) [5**DANISH ENDURANCE Mens Boxers Anti Chafing Long Leg or Regular Sports Underwear Men Running Boxers 6 Pack Black Large**DANISH ENDURANCE**£30.91**4.4★9,030 rev](https://www.amazon.co.uk/dp/B09HTTYYRF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Under Armour Mens Performance Tech 9-inch Boxerjock Multi-Pack Black Solid - Core 3 Pack XL**Under Armour**£21.75**10,293 rev2y ago](https://www.amazon.co.uk/dp/B0C2FYX27Z) [**Under Armour Mens Multi-Pack Performance Tech Boxerjock Brief 6 Inseam All-Day Comfort & Soft Boxer Royal Windstream Print Pack of 3 M**Under Armour**£23.67**5,701 rev2y ago](https://www.amazon.co.uk/dp/B0C2DJ1FB6) [**Under Armour Mens Multi-Pack Performance Tech Mesh Boxerjock Brief 6 Inseam All-Day Comfort Boxer Black Solid-Core 3 Pack Large (Pack of 3)**Under Armour**£24.19**319 rev2y ago](https://www.amazon.co.uk/dp/B0C2JM7K5C) [**Under Armour Mens 3-Pack Performance Tech Boxer Brief with 6 Inseam Breathable Moisture Wicking Soft Touch All-Day Comfort Black Black M**Under Armour**£18.64**612 rev3y ago](https://www.amazon.co.uk/dp/B0CBKZXP1K) [**Under Armour Mens 3-Pack Performance Tech Mesh Boxer Brief 6 Inseam Breathable Moisture Wicking Soft Touch All-Day Comfort Black L**Under Armour**£17.99**345 rev3y ago](https://www.amazon.co.uk/dp/B0CBKZQ316)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**DANISH ENDURANCE Running Boxers Men Anti Chafing Underwear Long Leg or Regular Sports Boxers 3 Pack Black M**DANISH ENDURANCE**£20.25**4.4★**▲ 48%**](https://www.amazon.co.uk/dp/B07P96RF5C) [**DANISH ENDURANCE Mens Boxers Anti Chafing Long Leg or Regular Sports Underwear Men Running Boxers 6 Pack Black X-Large**DANISH ENDURANCE**£30.26**4.4★**▲ 44%**](https://www.amazon.co.uk/dp/B09HTTXN92) [**DANISH ENDURANCE Mens Bamboo Boxers Comfortable Breathable Underwear Tagless Optional Open Fly 6 Pack Multicolor (2x Black 2x Red 2x Navy Blue) 3XL**DANISH ENDURANCE**£31.37**4.3★**▲ 41%**](https://www.amazon.co.uk/dp/B0C74KW2FS) [**DANISH ENDURANCE Running Boxers Men Anti Chafing Underwear Long Leg or Regular Sports Boxers 3 Pack Multicolour (1x Black 1x Blue 1x Green) XL**DANISH ENDURANCE**£20.46**4.4★**▲ 30%**](https://www.amazon.co.uk/dp/B0953GN71H) [**DANISH ENDURANCE Mens Boxers Anti Chafing Long Leg or Regular Sports Underwear Men Running Boxers 6 Pack Black Medium**DANISH ENDURANCE**£30.90**4.4★**▲ 28%**](https://www.amazon.co.uk/dp/B09HV89PG8)
**~~View all trending →~~**
## **What buyers say about running underwear men**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**32%
*“Extremely Comfortable”*
**Size-Overall**18%
*“fit in all the places you want them to”*
**Quality-Overall**15%
*“They are very well made”*
**Value For Money**5%
*“Well worth the money”*
**Material Quality**5%
*“Very soft material”*
**Exercise/Sports Suitability**4%
*“Excellent Sports Underwear”*
**Soft Feel**3%
*“soft material”*
**Breathability**2%
*“breathes well”*
**Advertised Vs Actual Product**2%
*“They are as advertised”*
**Washability**2%
*“easy wash”*
### **What buyers complain about **
**Size-Overall**29%
*“Poor Fit”*
**Quality-Overall**8%
*“Not quite as good as the advertising”*
**Durability**4%
*“Torn apart after worn once while on holiday”*
**Gap/Hole**4%
*“Some have holes”*
**Advertised Vs Actual Product**4%
*“Misinformation”*
**Stitch/Finish/Polish**4%
*“Weak seams”*
**Machine Wash Suitability**4%
*“Will update of they only last 1 wash”*
**Material Quality**3%
*“also the cotton content is lower than the previous pairs i own”*
**Allergies**3%
*“Caused allergic reaction”*
**Stretchability/Expandability/Elasticity**2%
*“The elasticated waist was poor”*
### **Top return reasons **
**Size-Overall**66%
**Compression**11%
**Quality-Overall**6%
**Waist Fit**3%
**Comfort-Overall**3%
**Pockets/Compartments**3%
**Advertised Vs Actual Product**3%
**Durability**3%
**Knot/Thread Quality**3%
**Thin**1%
## **Common questions**
- **Is running underwear men profitable to sell on Amazon United Kingdom?**
- The niche generates £169K/yr across 78 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is +29.8%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the running underwear men niche?**
- 14 brands and 37 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in running underwear men?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 0.1%.
- **When does demand for running underwear men peak?**
- Demand peaks in Nov–Dec; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the running underwear men niche?**
- Listings span £7.69–£41.29; the average listing price is £23.08 (sweet spot $15–$100). The average incumbent carries 7,436 reviews — the moat a new listing must climb.
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