---
title: "Long Sleeve Undershirt Men — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-undershirt-men"
last_updated: "2026-08-12T10:47:48.274Z"
locale: en
meta:
description: "Amazon product research for long sleeve undershirt men: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for long sleeve undershirt men: $1K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Long Sleeve Undershirt Men — Amazon US Product Research"
---
# **Long Sleeve Undershirt Men**
**Skip it**
A small market ($15K/yr) — this niche doesn't clear our bar today.
Market size 4Growth 28Conversion 7Competition 76Returns 32Price range 87Avg price 88Brand share 34Review moat 18Quality gap 47
**Avg price**
**Great****$20.28**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.37–$95.00**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****4.5%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+2.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****17,033.18**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Bad****0.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$15K**
$15K/yr · 127K searches
## **Is long sleeve undershirt men profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, long sleeve undershirt men is a $15K/yr Amazon United States market (127K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 38/100.
Data updated Jul 20, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **long sleeve undershirt men market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$41K–$51K**
- units × avg price
- **Conversion rate**
- **0.6%**
- **Avg BSR**
- **#1,006**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **52%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **151 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**18 **—flat
**Sellers**
**67**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**39%**
Top 20: 77%
**Open market**
**13%**
- Jerzees63% - Amazon Essentials8% - EVERYDAY TEES6% - HovSiyla5% - Gildan3% - Fresh Clean Threads2% - Open — no brand owns it (12 brands, 13%)
## **long sleeve undershirt men demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +2.3% search growth over the last 90 days.
13K8KSpike '24Holiday '24Spike '25Black Friday '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 4.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-undershirt-men/trend)
## **Top long sleeve undershirt men search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **jerzees t shirts for men**22K/yr+163.8%0.4% conv. - **jerzees t shirts**33K/yr-40.4%0.1% conv. - **jerzees**19K/yr-11.1%0.2% conv. - **black long sleeve undershirt men**13K/yr-46.6%1.3% conv. - **jerzees dri power t-shirts**6K/yr+57.6%0.4% conv. - **plain black long sleeve shirt men**4K/yr-34.5%1.2% conv. - **black longsleeve men**4K/yr-15.2%0.3% conv. - **black long sleeve shirt mens**4K/yr-33.8%2.2% conv. - **mens long sleeve black tshirt**3K/yr-38.3%2.3% conv. - **black undershirts men long sleeve**4K/yr-59.6%1.6% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-undershirt-men/search-terms)
## **Top long sleeve undershirt men products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$4506%$8999%$1K12%$2K101001K10K100K 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**Jerzees Dri-Power Performance T Shirts Moisture Wicking with Odor Control Short or Long Sleeve Sizes S-3X - Short Sleeve - Athletic Heather Large**Jerzees**$9.57**4.6★130 rev](https://www.amazon.com/dp/B0FNBGFBHF) [2**Jerzees Mens Dri-Power Cotton Blend Long Sleeve Tees Moisture Wicking Odor Protection UPF 30+ Sizes S-3X Black Large**Jerzees**$9.43**4.6★60,372 rev](https://www.amazon.com/dp/B00T7TXS2W) [3**Jerzees Adult 5.2 oz. Premium Blend Ring-Spun T-Shirt XL Military GRN HTH**Jerzees**$8.30**4.5★487 rev](https://www.amazon.com/dp/B08GHWHCPN) [4**Jerzees Mens Taping T-Shirt Safety Green Medium**Jerzees**$7.09**4.5★1,967 rev](https://www.amazon.com/dp/B01CD135FK) [5**Jerzees Mens Dri-Power Short Sleeve T-Shirt (Pocket & No Pocket-3 Pack-Black X-Large**Jerzees**$18.71**4.6★231 rev](https://www.amazon.com/dp/B00T7U957S)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Amazon Essentials Mens Slim Fit Crewneck Undershirts Pack of 6 Black Medium**Amazon Essentials**$18.58**48,794 rev5mo ago](https://www.amazon.com/dp/B0F6NH8QYD) [**Amazon Essentials Mens Long Sleeve Super Soft Modal Undershirt Pack of 2 Black Medium**Amazon Essentials**$15.21**359 rev8mo ago](https://www.amazon.com/dp/B0F7SL6XQS) [**Amazon Essentials Mens Long Sleeve Super Soft Modal Undershirt Pack of 2 Black Large**Amazon Essentials**$15.21**359 rev8mo ago](https://www.amazon.com/dp/B0F7RY37RR) [**Jerzees Dri-Power Performance T Shirts Moisture Wicking with Odor Control Short or Long Sleeve Sizes S-3X - Short Sleeve - Athletic Heather Large**Jerzees**$9.57**130 rev11mo ago](https://www.amazon.com/dp/B0FNBGFBHF) [**Jerzees Dri-Power Performance T Shirts Moisture Wicking with Odor Control Short or Long Sleeve Sizes S-3X - Short Sleeve - Silver Large**Jerzees**$6.47**130 rev11mo ago](https://www.amazon.com/dp/B0FNBTJ4GP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Jerzees Mens Taping T-Shirt Safety Green Medium**Jerzees**$7.09**4.5★**▲ 106%**](https://www.amazon.com/dp/B01CD135FK) [**Black Mens Ultra Cotton Plain Crew Neck T-Shirts | All-Day Comfort Casual Tagless T-Shirt for Men | Size Large**Tahrr & Me**$17.71**4.1★**▲ 105%**](https://www.amazon.com/dp/B0FCBVJ2C7) [**EVERYDAY TEES Mens Heavy Cotton Tee (Pack of 12) Assorted Mixed Color Small to 5XL (US Alpha X-Large Regular Regular Bright Assortment)**EVERYDAY TEES**$57.77**4.2★**▲ 104%**](https://www.amazon.com/dp/B0D6RX3KL4) [**Oversized Tshirts for Men Short Sleeve Vintage Washed Basic Loose Tees Solid Black L**ADOREJOY**$9.96**4.5★**▲ 101%**](https://www.amazon.com/dp/B0DJNJBVWG) [**Jerzees Mens DRI-POWER Active Short Sleeve Crew T-Shirt JZ29MR XL Cool Mint**Jerzees**$9.37**4.5★**▲ 100%**](https://www.amazon.com/dp/B01MYFH0UO)
**~~View all trending →~~**
## **What reviews say buyers love and hate about long sleeve undershirt men**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**23%
*“Not too tight”*
**Quality-Overall**16%
*“Quality Shirt”*
**Comfort-Overall**12%
*“So comfortable”*
**Value For Money**9%
*“Good for price”*
**Soft Feel**5%
*“Nice and soft”*
**Material Quality**4%
*“Good and comfortable material”*
**Color**3%
*“Nice variety of colors”*
**Warmth**2%
*“Nice and warm”*
**Advertised Vs Actual Product**2%
*“As advertised”*
**Shrinkage Resistance**1%
*“does not shrink”*
### **What buyers complain about **
**Size-Overall**18%
*“Too short”*
**Quality-Overall**12%
*“Low quality”*
**Material Quality**8%
*“Such horrible material”*
**Shrinkage Resistance**4%
*“Length shrinks significantly”*
**Thickness**3%
*“Very thin material”*
**Thin**3%
*“Very thin”*
**Value For Money**3%
*“Total waste of money”*
**Durability**3%
*“Ripped in less than a month”*
**Advertised Vs Actual Product**2%
*“Don't go by the photos”*
**Stitch/Finish/Polish**2%
*“One shirt had had defects in the seams around both sleeves”*
### **Top return reasons **
**Size-Overall**48%
**Material Quality**8%
**Chest Fit**8%
**Length**7%
**Sleeve Fit**5%
**Thin**3%
**Advertised Vs Actual Product**2%
**Quality-Overall**2%
**Arm Fit**2%
**Color**2%
## **Common long sleeve undershirt men questions**
- **Is long sleeve undershirt men profitable to sell on Amazon United States?**
- The niche generates $15K/yr across 50 tracked products. 2 of 10 products launched in the last 360 days are still selling. 90-day search growth is +2.3%. Flapen's verdict: Skip it (38/100).
- **How competitive is the long sleeve undershirt men niche?**
- 18 brands and 67 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in long sleeve undershirt men?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 4.5%.
- **When does demand for long sleeve undershirt men peak?**
- Demand peaks in Oct–Nov–Dec; the busiest month runs 4.7× the quietest.
- **What does it cost to enter the long sleeve undershirt men niche?**
- Listings span $6.37–$95.00; the average listing price is $20.28 (sweet spot $15–$100). The average incumbent carries 17,033 reviews — the moat a new listing must climb.
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