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59

undershirt for women

Worth a look

Shows a fragmented shelf (top 5 take 10% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 45Growth 68Conversion 6Competition 98Returns 18Price range 72Avg price 83Brand share 84Review moat 23Quality gap 73

Competition

Incredible10%

top-5 click share — an open shelf

Brand share

Great51%

top-5 brand share — no brand owns this niche

Avg price

Great$18.00

avg listing price — sweet spot $15–$100

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$4.90–$40.66

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

Growth

Good+49.3%

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

Market size

Okay$241K

$241K/yr · 2.9M searches

Review moat

Bad8,591.37

avg incumbent reviews — the moat a new listing must climb

Returns

Bad6.9%

return rate — above 5% kills the launch gate

Conversion

Bad0.5%

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

According to Flapen's Amazon United States niche tracking, undershirt for women is a $241K/yr Amazon United States market (2.9M searches/yr). The top 5 brands hold 51% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 59/100.

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

undershirt for women market data

Units sold / yr
15K–20K
avg 0–100/product
Revenue / yr
$270K–$360K
units × avg price
Conversion rate
0.5%
Avg BSR
#707
Page quality
0%
Prime
97%
Sponsored
95%
Out of stock
1.4%
Avg brand age
36 months
Avg seller age
149 days

Competition & brand share

Clicks spread well past the top 5 (10% combined) — an open shelf where new products get seen.

Brands

74 rising

Sellers

145

Top-5 brand share

51%

Top 20: 84%

Top-5 click share

10%

Top 20: 29%

Open market

48%

  • Amazon Essentials20%
  • Danysu10%
  • CHICME8%
  • ANRABESS6%
  • EasyGala3%
  • Trendy Queen3%

Demand & seasonality

Weekly Amazon search volume, last 79 weeks — +49.3% search growth over the last 90 days.
100K60KPrime Day '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jun, Jul · busiest ÷ quietest = 1.9×

Top undershirt for women search terms

  • tank with built in bra310K/yr
  • tops with built in bra259K/yr
  • shirts with built in bra177K/yr
  • built in bra197K/yr
  • womens camisole tank tops282K/yr
  • undershirts for women391K/yr
  • womens undershirts267K/yr
  • shelf bra tank tops for women134K/yr
  • tank top set130K/yr
  • top with built in bra91K/yr
All search terms

Top undershirt 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%1%$2K2%$5K3%$7K4%$10K1001K10K100K 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 undershirt for women

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

What buyers love

Size-Overall24%

“Amazing fit”

Comfort-Overall14%

“Comfortable to wear”

Quality-Overall8%

“Amazing quality”

Color7%

“Colors are accurate”

Soft Feel7%

“Buttery soft”

Material Quality6%

“Comfortable material”

Value For Money3%

“reasonably priced”

Stretchability/Expandability/Elasticity3%

“Stretchy and soft”

Shape/Style2%

“Very flattering”

Thickness1%

“thick material”

What buyers complain about

Size-Overall25%

“Runs long”

Quality-Overall4%

“Low quality”

Material Quality4%

“Poor quality material”

Thickness4%

“too thick”

Transparency4%

“SEE THROUGH”

Color3%

“Not White”

Chest Fit3%

“Not meant for large breasts”

Advertised Vs Actual Product3%

“False advertising”

Strap/String Quality2%

“Strap broke”

Length2%

“Don't trust the length”

Top return reasons

Size-Overall47%
Chest Fit13%
Length10%
Material Quality5%
Transparency4%
Waist Fit3%
Thin3%
Advertised Vs Actual Product2%
Arm Fit2%
Shape/Style1%

Common questions

Is undershirt for women profitable to sell on Amazon United States?
The niche generates $241K/yr across 277 tracked products. 55 of 100 products launched in the last 360 days are still selling. 90-day search growth is +49.3%. Flapen's verdict: Worth a look (59/100).
How competitive is the undershirt for women niche?
74 brands and 145 sellers compete. The top 5 products take 10% of clicks and top 5 brands hold 51% of demand.
What do buyers complain about in undershirt for women?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 6.9% — above our launch gate.
When does demand for undershirt for women peak?
Demand peaks in Jun–Jul; the busiest month runs 1.9× the quietest.
What does it cost to enter the undershirt for women niche?
Listings span $4.90–$40.66; the average listing price is $18.00 (sweet spot $15–$100). The average incumbent carries 8,591 reviews — the moat a new listing must climb.