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2undr mens underwear

Skip it

Weak search conversion (0.8%) — this niche doesn't clear our bar today.

Market size 11Growth 24Conversion 9Competition 92Returns 72Price range 93Avg price 95Brand share 44Review moat 23Quality gap 43

Avg price

Incredible$43.46

avg listing price — sweet spot $15–$100

Price range

Great$13.55–$90.45

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

Competition

Great23%

top-5 click share — an open shelf

Returns

Good2.1%

return rate — above 5% kills the launch gate

Brand share

Okay78%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-1.1%

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

Review moat

Bad7,206.17

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$46K

$46K/yr · 141K searches

Conversion

Bad0.8%

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

According to Flapen's Amazon United States niche tracking, 2undr mens underwear is a $46K/yr Amazon United States market (141K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 47/100.

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

2undr mens underwear market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
$43K–$54K
units × avg price
Conversion rate
0.8%
Avg BSR
#114
Page quality
0%
Prime
100%
Sponsored
98%
Out of stock
1.9%
Avg brand age
44 months
Avg seller age
155 days

Competition & brand share

Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.

Brands

28 rising

Sellers

73

Top-5 brand share

78%

Top 20: 96%

Top-5 click share

23%

Top 20: 47%

Open market

19%

  • BAMBOO COOL44%
  • 2UNDR14%
  • SAXX Underwear Co.13%
  • Tommy John5%
  • Calvin Klein3%
  • TAILONG2%

Top 2undr mens underwear search terms

  • mack weldon43K/yr
  • 2undr mens underwear33K/yr
  • skims men21K/yr
  • lululemon underwear12K/yr
  • whoop underwear men8K/yr
  • crz yoga mens underwear5K/yr
  • mens skims6K/yr
  • skims mens5K/yr
  • patagonia mens underwear5K/yr
  • patagonia underwear men3K/yr
All search terms

Top 2undr mens underwear 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%$9174%$2K6%$3K8%$4K101001K10K100K 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 2undr mens underwear

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

What buyers love

Comfort-Overall28%

“comfortable to wear”

Size-Overall15%

“Fit like a glove”

Quality-Overall9%

“true to size, great quality”

Soft Feel7%

“Soft fabric”

Value For Money5%

“They are affordable”

Breathability5%

“Awesome breathability”

Material Quality4%

“Good material”

Advertised Vs Actual Product2%

“Exactly as advertised”

Color2%

“The colors are vibrant”

Weight Light2%

“They are lightweight and breathable”

What buyers complain about

Size-Overall16%

“Buy one size larger”

Quality-Overall7%

“Product is low quality”

Comfort-Overall6%

“Extremely uncomfortable”

Material Quality6%

“Poor quality material”

Durability5%

“they are falling apart”

Stretchability/Expandability/Elasticity4%

“Stretched out”

Thickness4%

“Very thick material even when theyre stretched out a bit”

Value For Money4%

“Not Worth the Price”

Advertised Vs Actual Product3%

“False advertisement”

Waist Fit3%

“even though the waist wasnt even close to too tight”

Top return reasons

Size-Overall49%
Waist Fit9%
Material Quality9%
Length5%
Thigh Fit5%
Advertised Vs Actual Product3%
Chest Fit2%
Thin2%
Comfort-Overall2%
Shape/Style1%

Common questions

Is 2undr mens underwear profitable to sell on Amazon United States?
The niche generates $46K/yr across 94 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -1.1%. Flapen's verdict: Skip it (47/100).
How competitive is the 2undr mens underwear niche?
28 brands and 73 sellers compete. The top 5 products take 23% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in 2undr mens underwear?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Comfort-Overall. The return rate is 2.1%.
What does it cost to enter the 2undr mens underwear niche?
Listings span $13.55–$90.45; the average listing price is $43.46 (sweet spot $15–$100). The average incumbent carries 7,206 reviews — the moat a new listing must climb.