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thermal underwear mens

Skip it

Soft demand (-77.4% this quarter) — this niche doesn't clear our bar today.

Market size 27Growth 0Conversion 8Competition 96Returns 56Price range 79Avg price 59Brand share 96Review moat 30Quality gap 65

Competition

Incredible15%

top-5 click share — an open shelf

Brand share

Incredible33%

top-5 brand share — no brand owns this niche

Price range

Great£6.37–£50.52

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good£13.07

avg listing price — sweet spot $15–$100

Returns

Good2.8%

return rate — above 5% kills the launch gate

Review moat

Okay3,454.4

avg incumbent reviews — the moat a new listing must climb

Market size

Okay£112K

£112K/yr · 1.3M searches

Conversion

Bad0.7%

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

Growth

Bad-77.4%

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

According to Flapen's Amazon United Kingdom niche tracking, thermal underwear mens is a £112K/yr Amazon United Kingdom market (1.3M searches/yr). The top 5 brands hold 33% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Skip it — 49/100.

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

thermal underwear mens market data

Units sold / yr
20K–25K
avg 100–250/product
Revenue / yr
£261K–£327K
units × avg price
Conversion rate
0.7%
Avg BSR
#584
Page quality
0%
Prime
90%
Sponsored
83%
Out of stock
27.0%
Avg brand age
45 months
Avg seller age
174 days

Competition & brand share

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

Brands

59 rising

Sellers

100

Top-5 brand share

33%

Top 20: 78%

Top-5 click share

15%

Top 20: 40%

Open market

61%

  • BENNIES8%
  • wirarpa7%
  • NOOYME7%
  • Heatwave Thermalwear6%
  • Niksa5%
  • MOBIUSPHY5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -77.4% search growth over the last 90 days.
175K125KSpike '24Black Friday '24Holiday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Nov, Dec · busiest ÷ quietest = 32.0×

Top thermal underwear mens search terms

  • base layers men117K/yr
  • thermal116K/yr
  • base layer35K/yr
  • thermals93K/yr
  • thermal underwear mens98K/yr
  • thermals men100K/yr
  • mens thermal top59K/yr
  • mens thermal underwear72K/yr
  • thermals womens44K/yr
  • thermal top for men82K/yr
All search terms

Top thermal underwear mens 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%£2K4%£4K6%£7K8%£9K1101001K10K100K Reviews — right = deep review moat Market 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.

What buyers say about thermal underwear mens

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

What buyers love

Warmth26%

“keep you warm”

Size-Overall14%

“Amazing fit”

Comfort-Overall11%

“Comfy and warm”

Quality-Overall11%

“Seems well made”

Value For Money8%

“Good Value”

Soft Feel3%

“Lovely and soft”

Thickness2%

“Lovely thick cozy socks”

Weather Proof2%

“Perfect for the cold weather”

Material Quality2%

“Breathable material, easy to use”

Advertised Vs Actual Product1%

“As described”

What buyers complain about

Size-Overall18%

“Bit short”

Quality-Overall14%

“Rubbish, cheap and certainly dont fit purpose”

Thickness12%

“not as thick as I thought”

Warmth8%

“it wont keep you warm”

Material Quality3%

“nice colours however the material looked snagged”

Lining Quality3%

“no fleece lining”

Thin3%

“Too thin”

Stitch/Finish/Polish2%

“Not made that well the stitches are not good”

Advertised Vs Actual Product2%

“Misleading”

Comfort-Overall1%

“These are not going to be comfy over a long day even without walking”

Top return reasons

Size-Overall53%
Quality-Overall5%
Material Quality5%
Thin4%
Length3%
Advertised Vs Actual Product3%
Stitch/Finish/Polish2%
Comfort-Overall2%
Warmth2%
Gap/Hole2%

Common questions

Is thermal underwear mens profitable to sell on Amazon United Kingdom?
The niche generates £112K/yr across 156 tracked products. 0 of 32 products launched in the last 360 days are still selling. 90-day search growth is -77.4%. Flapen's verdict: Skip it (49/100).
How competitive is the thermal underwear mens niche?
59 brands and 100 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 33% of demand.
What do buyers complain about in thermal underwear mens?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 2.8%.
When does demand for thermal underwear mens peak?
Demand peaks in Jan–Nov–Dec; the busiest month runs 32.0× the quietest.
What does it cost to enter the thermal underwear mens niche?
Listings span £6.37–£50.52; the average listing price is £13.07 (sweet spot $15–$100). The average incumbent carries 3,454 reviews — the moat a new listing must climb.