---
title: "Undershirt for Women — $241K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/undershirt-for-women"
last_updated: "2026-08-09T13:35:02.432Z"
locale: en
meta:
description: "Niche score 59/100 · $241K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $241K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Undershirt for Women — $241K/yr Amazon US Niche (2026) - Flapen"
---
# **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**
**Incredible****10%**
top-5 click share — an open shelf
**Brand share**
**Great****51%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****$18.00**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.3★**
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**
**Bad****8,591.37**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Bad****6.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.5%**
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, 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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jun, Jul · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/undershirt-for-women/trend)
## **Top undershirt for women search terms**
- **tank with built in bra**310K/yr+138.3%0.4% conv. - **tops with built in bra**259K/yr+93.0%0.1% conv. - **shirts with built in bra**177K/yr+139.5%0.2% conv. - **built in bra**197K/yr+99.4%0.1% conv. - **womens camisole tank tops**282K/yr+22.2%0.5% conv. - **undershirts for women**391K/yr-17.7%0.4% conv. - **womens undershirts**267K/yr-32.4%0.6% conv. - **shelf bra tank tops for women**134K/yr+58.4%0.3% conv. - **tank top set**130K/yr+48.2%0.1% conv. - **top with built in bra**91K/yr+69.4%0.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/undershirt-for-women/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 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**Danysu V Neck Racerback Tank Top for Women with Built in Bra Ribbed Long Tank Fitted Basic Cami Tops Black M**Danysu**$13.98**4.2★3,632 rev](https://www.amazon.com/dp/B0D35YXQ6L) [2**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Black/Brown/Light Brown/White Small**Amazon Essentials**$18.84**4.5★50,824 rev](https://www.amazon.com/dp/B08XQZ6RW1) [3**CHICME Women Built-in Bra Tank Tops Sleeveless Casual Shirts Racerback Ribbed Tank Tops White-L**CHICME**$17.74**4.0★3,873 rev](https://www.amazon.com/dp/B0DJ1D5XZM) [4**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Black/Brick Red/Dusty Pink/White Medium**Amazon Essentials**$18.96**4.5★50,824 rev](https://www.amazon.com/dp/B08XQWPXKZ) [5**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Grey/Taupe X-Small**Amazon Essentials**$17.83**4.5★50,824 rev](https://www.amazon.com/dp/B0BG7DYXCZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**REORIA Built in Bra Tank Tops for Women Summer Sleeveless Racerback Square Neck Casual Basic Ribbed Tops 2026 Trendy Shirt Black Medium**REORIA**$22.09**375 rev6mo ago](https://www.amazon.com/dp/B0G2LV9HZW) [**BVNSOZ 3 Piece Womens Tank Tops with Built in Bras Ribbed Sleeveless Casual Shirt Racerback Fitted Basic Workout Tank Tops Khaki White Black M**BVNSOZ**$36.58**143 rev7mo ago](https://www.amazon.com/dp/B0G58HNY4T) [**Trendy Queen Womens Double Lined Tank Tops Crop Tops Summer Fashion Clothing 2026 White M**Trendy Queen**$11.48**841 rev7mo ago](https://www.amazon.com/dp/B0G13Z2LD7) [**ANYOCEAN Womens Adjustable Strap Camisole Slim Fit Crew Neck Sleeveless Tank Top Soft Knit Casual Tops 3-Pack Lounge & Athletic & Beach Basic (25A122 3P Black White Pink M)**ANYOCEAN**$13.39**390 rev7mo ago](https://www.amazon.com/dp/B0G2S4XT22) [**Danysu Ribbed Cotton Built in Bra Tank Tops for Women Non See Through Thick Strap Layering Kitted Womens Tanks & Camis Angel White Medium**Danysu**$15.93**420 rev1y ago](https://www.amazon.com/dp/B0FF4JRKCR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**CHICME Tank Tops with Built in Bras Athletic Tank Tops for Women Ribbed Tank Top Running Tops Black-M**CHICME**$17.56**4.0★**▲ 30%**](https://www.amazon.com/dp/B0DJ1CTJ75) [**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Black/Brick Red/Dusty Pink/White Medium**Amazon Essentials**$18.96**4.5★**▲ 30%**](https://www.amazon.com/dp/B08XQWPXKZ) [**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Black/Dark Taupe/Espresso/White Small**Amazon Essentials**$19.02**4.5★**▲ 29%**](https://www.amazon.com/dp/B0BG7KCHZZ) [**Amazon Essentials Womens Slim-Fit Camisole for Layering and Everyday Wear Pack of 4 Grey/Taupe X-Small**Amazon Essentials**$17.83**4.5★**▲ 29%**](https://www.amazon.com/dp/B0BG7DYXCZ) [**BVNSOZ 3 Piece Womens Tank Tops with Built in Bras Ribbed Sleeveless Casual Shirt Racerback Fitted Basic Workout Tank Tops Khaki White Black M**BVNSOZ**$36.58**4.4★**▲ 29%**](https://www.amazon.com/dp/B0G58HNY4T)
**~~View all trending →~~**
## **What buyers say about undershirt for women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“Amazing fit”*
**Comfort-Overall**14%
*“Comfortable to wear”*
**Quality-Overall**8%
*“Amazing quality”*
**Color**7%
*“Colors are accurate”*
**Soft Feel**7%
*“Buttery soft”*
**Material Quality**6%
*“Comfortable material”*
**Value For Money**3%
*“reasonably priced”*
**Stretchability/Expandability/Elasticity**3%
*“Stretchy and soft”*
**Shape/Style**2%
*“Very flattering”*
**Thickness**1%
*“thick material”*
### **What buyers complain about **
**Size-Overall**25%
*“Runs long”*
**Quality-Overall**4%
*“Low quality”*
**Material Quality**4%
*“Poor quality material”*
**Thickness**4%
*“too thick”*
**Transparency**4%
*“SEE THROUGH”*
**Color**3%
*“Not White”*
**Chest Fit**3%
*“Not meant for large breasts”*
**Advertised Vs Actual Product**3%
*“False advertising”*
**Strap/String Quality**2%
*“Strap broke”*
**Length**2%
*“Don't trust the length”*
### **Top return reasons **
**Size-Overall**47%
**Chest Fit**13%
**Length**10%
**Material Quality**5%
**Transparency**4%
**Waist Fit**3%
**Thin**3%
**Advertised Vs Actual Product**2%
**Arm Fit**2%
**Shape/Style**1%
## **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.
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