---
title: "Under Shirts for Women — $55K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/under-shirts-for-women"
last_updated: "2026-08-09T13:38:09.309Z"
locale: en
meta:
description: "Niche score 44/100 · $55K/yr market · 303K searches/yr · $18.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $55K/yr market · 303K searches/yr · $18.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Under Shirts for Women — $55K/yr Amazon US Niche (2026) - Flapen"
---
# **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**
**Incredible****18%**
top-5 click share — an open shelf
**Avg price**
**Great****$18.24**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****61%**
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**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****12,045.06**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Bad****6.4%**
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**
**Bad****1.0%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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 '25 seasonSepDecMarJunAugNovMarMay
Peak months: Oct · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/under-shirts-for-women/trend)
## **Top under shirts for women search terms**
- **black undershirt women**92K/yr-30.5%1.0% conv. - **white undershirt women**29K/yr+38.7%1.2% conv. - **womens white undershirt**28K/yr-13.7%1.4% conv. - **cooling undershirts for women**9K/yr+149.1%0.1% conv. - **womens cotton undershirts**19K/yr-25.3%0.3% conv. - **white under shirts women**11K/yr+4.8%0.5% conv. - **womens undershirts cotton**14K/yr-25.2%0.5% conv. - **long undershirts for women**15K/yr-27.9%0.1% conv. - **white undershirts women**9K/yr+39.7%1.2% conv. - **thin undershirts women**6K/yr+55.7%0.3% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/under-shirts-for-women/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 White Large**Amazon Essentials**$19.67**4.5★50,824 rev](https://www.amazon.com/dp/B0775B1824) [2**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Black Large**Amazon Essentials**$18.91**4.5★50,824 rev](https://www.amazon.com/dp/B0775WTRR6) [3**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 White Small**Amazon Essentials**$19.91**4.5★50,824 rev](https://www.amazon.com/dp/B0775B181V) [4**3 Pack Scrub Undershirts Long Sleeve Women Comfortable Underscrub for Nurse High Crew Neck Black M**floralhue**$26.95**4.3★81 rev](https://www.amazon.com/dp/B0GG9V1XJQ) [5**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 White XX-Large**Amazon Essentials**$19.56**4.5★50,824 rev](https://www.amazon.com/dp/B0775PNHDL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Scrub Undershirts Long Sleeve Women Comfortable Underscrub for Nurse High Crew Neck Black M**floralhue**$12.96**21 rev1mo ago](https://www.amazon.com/dp/B0GG9C8XLF) [**3 Pack Scrub Undershirts Long Sleeve Women Comfortable Underscrub for Nurse High Crew Neck Black M**floralhue**$26.95**81 rev3mo ago](https://www.amazon.com/dp/B0GG9V1XJQ) [**COZY SCRUBS Womens Underscrubs Short Sleeve - Crew Neck Scrubs Tee Silky Knit Undershirts for Nurse (Previously COZYFIT) Black M**COZY SCRUBS**$17.52**41 rev4mo ago](https://www.amazon.com/dp/B0G4PGLZL1) [**COZY SCRUBS Womens Underscrubs Short Sleeve - Crew Neck Scrubs Tee Silky Knit Undershirts for Nurse (Previously COZYFIT) White M**COZY SCRUBS**$16.92**41 rev4mo ago](https://www.amazon.com/dp/B0G4PHXHKR) [**COZYFIT Womens Underscrub Tee Comfort V-Neck Long Sleeve Undershirt with Soft & Easy Care Fabric Black**COZYFIT**$10.15**625 rev11mo ago](https://www.amazon.com/dp/B0FHVBDCRK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**3 Pack Scrub Undershirts Long Sleeve Women Comfortable Underscrub for Nurse High Crew Neck Black M**floralhue**$26.95**4.3★**▲ 50%**](https://www.amazon.com/dp/B0GG9V1XJQ) [**Amazon Essentials Womens Fitted Tank Top Camisole Undershirts Plus Size Pack of 2 White 1X**Amazon Essentials**$14.56**4.4★**▲ 50%**](https://www.amazon.com/dp/B07R4WD71W) [**Scrub Undershirts Long Sleeve Women Comfortable Underscrub for Nurse High Crew Neck Black M**floralhue**$12.96**4.8★**▲ 49%**](https://www.amazon.com/dp/B0GG9C8XLF) [**COZY SCRUBS Womens Underscrubs Short Sleeve - Crew Neck Scrubs Tee Silky Knit Undershirts for Nurse (Previously COZYFIT) Black M**COZY SCRUBS**$17.52**4.7★**▲ 47%**](https://www.amazon.com/dp/B0G4PGLZL1) [**COZY SCRUBS Womens Underscrubs Short Sleeve - Crew Neck Scrubs Tee Silky Knit Undershirts for Nurse (Previously COZYFIT) White M**COZY SCRUBS**$16.92**4.7★**▲ 43%**](https://www.amazon.com/dp/B0G4PHXHKR)
**~~View all trending →~~**
## **What buyers say about under shirts for women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“not too tight”*
**Comfort-Overall**12%
*“Extremely comfortable”*
**Soft Feel**10%
*“Buttery soft”*
**Quality-Overall**8%
*“Amazing quality”*
**Material Quality**6%
*“Material is soft”*
**Color**5%
*“Colors are accurate”*
**Stretchability/Expandability/Elasticity**4%
*“Love the stretch”*
**Value For Money**3%
*“Great value”*
**Thickness**2%
*“thick material”*
**Shape/Style**2%
*“I really like the style”*
### **What buyers complain about **
**Size-Overall**25%
*“Too short”*
**Material Quality**5%
*“Cheap material”*
**Transparency**5%
*“See through”*
**Thickness**4%
*“a bit too thick”*
**Quality-Overall**3%
*“Not as good quality as I hoped for”*
**Color**3%
*“Not WHITE”*
**Smell**3%
*“Smells Awful”*
**Advertised Vs Actual Product**3%
*“Does not match the description”*
**Strap/String Quality**2%
*“Strap broke”*
**Stretchability/Expandability/Elasticity**2%
*“not as stretchy”*
### **Top return reasons **
**Size-Overall**48%
**Length**11%
**Chest Fit**8%
**Material Quality**7%
**Thin**4%
**Transparency**3%
**Waist Fit**3%
**Advertised Vs Actual Product**2%
**Color**2%
**Sleeve Fit**2%
## **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.
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