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59

under shirt for men

Worth a look

Shows a sweet-spot price point ($20.67 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 74Growth 57Conversion 33Competition 87Returns 56Price range 82Avg price 89Brand share 40Review moat 1Quality gap 45

Avg price

Great$20.67

avg listing price — sweet spot $15–$100

Competition

Great28%

top-5 click share — an open shelf

Price range

Great$6.93–$56.76

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

Market size

Good$819K

$819K/yr · 1.5M searches

Growth

Good+31.9%

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

Returns

Good2.8%

return rate — above 5% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay81%

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

Conversion

Okay2.6%

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

Review moat

Bad47,586.85

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, under shirt for men is a $819K/yr Amazon United States market (1.5M searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 59/100.

Data updated Jul 20, 2026 · scored weekly · How we score niches

under shirt for men market data

Units sold / yr
40K–50K
avg 500–750/product
Revenue / yr
$827K–$1.0M
units × avg price
Conversion rate
2.6%
Avg BSR
#297
Page quality
0%
Prime
99%
Sponsored
92%
Out of stock
0.1%
Avg brand age
41 months
Avg seller age
129 days

Competition & brand share

Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.

Brands

27 rising

Sellers

148

Top-5 brand share

81%

Top 20: 97%

Top-5 click share

28%

Top 20: 58%

Open market

16%

  • Hanes50%
  • Fruit of the Loom11%
  • BAMBOO COOL8%
  • Gildan8%
  • MAGNIVIT4%
  • CHAPS UNDERWEAR2%
  • Open — no brand owns it (21 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +31.9% search growth over the last 90 days.
40K30KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top under shirt for men search terms

  • hanes white t shirts for men212K/yr
  • hanes undershirt for men148K/yr
  • plain white tshirt men103K/yr
  • white tees83K/yr
  • camisas blancas para hombres70K/yr
  • white undershirt66K/yr
  • muscle fit t shirts for men45K/yr
  • thick white t shirts for men46K/yr
  • hanes beefy t55K/yr
  • hanes undershirt45K/yr
All search terms

Top under shirt for 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%2%$16K4%$33K6%$49K8%$65K1001K10K100K1.0M 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 under shirt for men

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

What buyers love

Size-Overall20%

“FITS GREAT”

Quality-Overall15%

“Excellent Product”

Comfort-Overall11%

“Super comfortable”

Value For Money10%

“Good value for money”

Soft Feel7%

“Material is soft and comfortable”

Material Quality5%

“Good material”

Advertised Vs Actual Product4%

“Exactly as pictured and described”

Shrinkage Resistance2%

“Did not shrink”

Color2%

“true to colour”

Thickness2%

“Good thickness”

What buyers complain about

Size-Overall14%

“Too short”

Quality-Overall13%

“Not Hanes quality”

Thickness10%

“thick as cotton ones”

Material Quality7%

“Bad material”

Shrinkage Resistance5%

“Shirts shrink a lot”

Thin4%

“fabric is thin”

Hard Feel3%

“Not soft”

Gap/Hole3%

“it has a hole in it”

Stitch/Finish/Polish2%

“Poor stitching”

Value For Money2%

“Waste of money”

Top return reasons

Size-Overall47%
Length11%
Thin7%
Material Quality6%
Chest Fit6%
Advertised Vs Actual Product3%
Neck Fit2%
Quality-Overall2%
Sleeve Fit2%
Value For Money2%

Common questions

Is under shirt for men profitable to sell on Amazon United States?
The niche generates $819K/yr across 85 tracked products. 5 of 12 products launched in the last 360 days are still selling. 90-day search growth is +31.9%. Flapen's verdict: Worth a look (59/100).
How competitive is the under shirt for men niche?
27 brands and 148 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in under shirt for men?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 2.8%.
When does demand for under shirt for men peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the under shirt for men niche?
Listings span $6.93–$56.76; the average listing price is $20.67 (sweet spot $15–$100). The average incumbent carries 47,587 reviews — the moat a new listing must climb.