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under shirts for women

Skip it

Weak search conversion (1.0%) — this niche doesn't clear our bar today.

Market size 14Growth 19Conversion 12Competition 96Returns 20Price range 73Avg price 83Brand share 74Review moat 21Quality gap 57

Competition

Incredible18%

top-5 click share — an open shelf

Avg price

Great$18.24

avg listing price — sweet spot $15–$100

Brand share

Good61%

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

Price range

Good$6.49–$38.07

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Bad12,045.06

avg incumbent reviews — the moat a new listing must climb

Returns

Bad6.4%

return rate — above 5% kills the launch gate

Growth

Bad-13.0%

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

Market size

Bad$55K

$55K/yr · 303K searches

Conversion

Bad1.0%

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

According to Flapen's Amazon United States niche tracking, under shirts for women is a $55K/yr Amazon United States market (303K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Oct. Verdict: Skip it — 44/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

under shirts for women market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
$55K–$73K
units × avg price
Conversion rate
1.0%
Avg BSR
#1,359
Page quality
0%
Prime
100%
Sponsored
92%
Out of stock
2.3%
Avg brand age
39 months
Avg seller age
160 days

Competition & brand share

Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen.

Brands

42 rising

Sellers

48

Top-5 brand share

61%

Top 20: 92%

Top-5 click share

18%

Top 20: 42%

Open market

35%

  • Amazon Essentials38%
  • floralhue7%
  • COZYFIT6%
  • Trendy Queen5%
  • BQTQ4%
  • COZY SCRUBS4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -13.0% search growth over the last 90 days.
12K8KSpike '24Spike '25SepDecMarJunAugNovMarMay

Peak months: Oct · busiest ÷ quietest = 1.7×

Top under shirts for women search terms

  • black undershirt women92K/yr
  • white undershirt women29K/yr
  • womens white undershirt28K/yr
  • cooling undershirts for women9K/yr
  • womens cotton undershirts19K/yr
  • white under shirts women11K/yr
  • womens undershirts cotton14K/yr
  • long undershirts for women15K/yr
  • white undershirts women9K/yr
  • thin undershirts women6K/yr
All search terms

Top under shirts for women 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%$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 under shirts for women

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

What buyers love

Size-Overall24%

“not too tight”

Comfort-Overall12%

“Extremely comfortable”

Soft Feel10%

“Buttery soft”

Quality-Overall8%

“Amazing quality”

Material Quality6%

“Material is soft”

Color5%

“Colors are accurate”

Stretchability/Expandability/Elasticity4%

“Love the stretch”

Value For Money3%

“Great value”

Thickness2%

“thick material”

Shape/Style2%

“I really like the style”

What buyers complain about

Size-Overall25%

“Too short”

Material Quality5%

“Cheap material”

Transparency5%

“See through”

Thickness4%

“a bit too thick”

Quality-Overall3%

“Not as good quality as I hoped for”

Color3%

“Not WHITE”

Smell3%

“Smells Awful”

Advertised Vs Actual Product3%

“Does not match the description”

Strap/String Quality2%

“Strap broke”

Stretchability/Expandability/Elasticity2%

“not as stretchy”

Top return reasons

Size-Overall48%
Length11%
Chest Fit8%
Material Quality7%
Thin4%
Transparency3%
Waist Fit3%
Advertised Vs Actual Product2%
Color2%
Sleeve Fit2%

Common questions

Is under shirts for women profitable to sell on Amazon United States?
The niche generates $55K/yr across 140 tracked products. 21 of 33 products launched in the last 360 days are still selling. 90-day search growth is -13.0%. Flapen's verdict: Skip it (44/100).
How competitive is the under shirts for women niche?
42 brands and 48 sellers compete. The top 5 products take 18% of clicks and top 5 brands hold 61% of demand.
What do buyers complain about in under shirts for women?
Top complaints mined from reviews: Size-Overall, Material Quality, Transparency. The return rate is 6.4% — above our launch gate.
When does demand for under shirts for women peak?
Demand peaks in Oct; the busiest month runs 1.7× the quietest.
What does it cost to enter the under shirts for women niche?
Listings span $6.49–$38.07; the average listing price is $18.24 (sweet spot $15–$100). The average incumbent carries 12,045 reviews — the moat a new listing must climb.