---
title: "Under Shirt for Men — $819K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/under-shirt-for-men"
last_updated: "2026-08-09T12:30:55.407Z"
locale: en
meta:
description: "Niche score 59/100 · $819K/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 · $819K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Under Shirt for Men — $819K/yr Amazon US Niche (2026) - Flapen"
---
# **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**
**Great****28%**
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**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****47,586.85**
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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/under-shirt-for-men/trend)
## **Top under shirt for men search terms**
- **hanes white t shirts for men**212K/yr+70.6%4.1% conv. - **hanes undershirt for men**148K/yr-1.1%3.0% conv. - **plain white tshirt men**103K/yr+20.8%2.1% conv. - **white tees**83K/yr+23.3%0.9% conv. - **camisas blancas para hombres**70K/yr+15.0%0.5% conv. - **white undershirt**66K/yr+16.0%1.2% conv. - **muscle fit t shirts for men**45K/yr+36.2%0.0% conv. - **thick white t shirts for men**46K/yr+20.3%1.3% conv. - **hanes beefy t**55K/yr+12.8%0.9% conv. - **hanes undershirt**45K/yr+40.6%2.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/under-shirt-for-men/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 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**Hanes Mens Cotton Moisture-wicking Crew Tee Undershirts Multi-packs White - 6 Pack Large US**Hanes**$17.72**4.4★92,773 rev](https://www.amazon.com/dp/B00D1ARZMC) [2**Hanes Mens Cotton Moisture-wicking Crew Tee Undershirts Multi-packs White - 6 Pack Medium US**Hanes**$17.66**4.4★92,773 rev](https://www.amazon.com/dp/B00HVW5HP8) [3**Hanes Men Hanes Mens White Performance Moisture-Wicking Crewneck Undershirt Tees 5-Pack**Hanes**$22.98**4.6★35,779 rev](https://www.amazon.com/dp/B074XY7MTG) [4**BAMBOO COOL Mens Undershirts Pack Soft T Shirts for Men Moisture Wicking Tees Stretchy Breathable Crew Neck Inner Shirt**BAMBOO COOL**$34.62**4.6★3,448 rev](https://www.amazon.com/dp/B0BXFHW91M) [5**Hanes Mens Undershirt Packs Stay-tucked Soft Cotton Best For Men White/Black/Asstd Multipacks Base Layer White - 6 Pack X-Large US**Hanes**$17.91**4.4★92,773 rev](https://www.amazon.com/dp/B00L6PI71W)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hanes Ultimate Mens Undershirts T-Shirt Pack 4-Pack ComfortBlend Moisture-Wicking Tees for Men Crewneck T-Shirt Slim Fit**Hanes**$23.93**5,583 rev4mo ago](https://www.amazon.com/dp/B0GQVKG865) [**MAGCOMSEN Mens White T-Shirts Short Sleeve UPF 80+ Sun Protection Plain Lightweight Moisture Wicking Casual Crew Neck Basic Tees L**MAGCOMSEN**$10.18**231 rev1y ago](https://www.amazon.com/dp/B0F7XHHV1T) [**Cotrasen T Shirts for Man Cotton Short Sleeve White Tee Shirts Casual Summer Beach UPF 50+ Crew Neck T-Shirts Soft Classic Basic Tees Plain Tshirts White XL**Cotrasen**$10.91**414 rev1y ago](https://www.amazon.com/dp/B0F1SZHYJC) [**MAGNIVIT Mens Shirts Short Sleeve Cotton T-Shirt Basic Classic Casual Pullover Shirt White**MAGNIVIT**$10.70**262 rev1y ago](https://www.amazon.com/dp/B0DSZX7LV5) [**MAGNIVIT Mens Shirts Short Sleeve Cotton T-Shirt Basic Classic Casual Pullover Shirt White**MAGNIVIT**$10.55**262 rev1y ago](https://www.amazon.com/dp/B0DSZY66PX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Hanes Ultimate Mens Undershirts T-Shirt Pack 4-Pack ComfortBlend Moisture-Wicking Tees for Men Crewneck T-Shirt Slim Fit**Hanes**$23.93**4.4★**▲ 85%**](https://www.amazon.com/dp/B0GQVKG865) [**MAGNIVIT Mens Shirts Short Sleeve Cotton T-Shirt Basic Classic Casual Pullover Shirt White**MAGNIVIT**$10.70**4.5★**▲ 79%**](https://www.amazon.com/dp/B0DSZX7LV5) [**MAGNIVIT Mens Shirts Short Sleeve Cotton T-Shirt Basic Classic Casual Pullover Shirt White**MAGNIVIT**$10.55**4.5★**▲ 79%**](https://www.amazon.com/dp/B0DSZY66PX) [**Cotrasen T Shirts for Man Cotton Short Sleeve White Tee Shirts Casual Summer Beach UPF 50+ Crew Neck T-Shirts Soft Classic Basic Tees Plain Tshirts White XL**Cotrasen**$10.91**4.6★**▲ 78%**](https://www.amazon.com/dp/B0F1SZHYJC) [**MAGCOMSEN Mens White T-Shirts Short Sleeve UPF 80+ Sun Protection Plain Lightweight Moisture Wicking Casual Crew Neck Basic Tees L**MAGCOMSEN**$10.18**4.4★**▲ 55%**](https://www.amazon.com/dp/B0F7XHHV1T)
**~~View all trending →~~**
## **What buyers say about under shirt for men**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**20%
*“FITS GREAT”*
**Quality-Overall**15%
*“Excellent Product”*
**Comfort-Overall**11%
*“Super comfortable”*
**Value For Money**10%
*“Good value for money”*
**Soft Feel**7%
*“Material is soft and comfortable”*
**Material Quality**5%
*“Good material”*
**Advertised Vs Actual Product**4%
*“Exactly as pictured and described”*
**Shrinkage Resistance**2%
*“Did not shrink”*
**Color**2%
*“true to colour”*
**Thickness**2%
*“Good thickness”*
### **What buyers complain about **
**Size-Overall**14%
*“Too short”*
**Quality-Overall**13%
*“Not Hanes quality”*
**Thickness**10%
*“thick as cotton ones”*
**Material Quality**7%
*“Bad material”*
**Shrinkage Resistance**5%
*“Shirts shrink a lot”*
**Thin**4%
*“fabric is thin”*
**Hard Feel**3%
*“Not soft”*
**Gap/Hole**3%
*“it has a hole in it”*
**Stitch/Finish/Polish**2%
*“Poor stitching”*
**Value For Money**2%
*“Waste of money”*
### **Top return reasons **
**Size-Overall**47%
**Length**11%
**Thin**7%
**Material Quality**6%
**Chest Fit**6%
**Advertised Vs Actual Product**3%
**Neck Fit**2%
**Quality-Overall**2%
**Sleeve Fit**2%
**Value For Money**2%
## **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.
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