---
title: "Long Sleeve Running Shirt — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-running-shirt"
last_updated: "2026-08-12T12:41:48.156Z"
locale: en
meta:
description: "Amazon product research for long sleeve running shirt: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for long sleeve running shirt: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Long Sleeve Running Shirt — Amazon US Product Research"
---
# **Long Sleeve Running Shirt**
**Skip it**
Soft demand (-83.8% this quarter) — this niche doesn't clear our bar today.
Market size 10Growth 0Conversion 7Competition 53Returns 4Price range 91Avg price 95Brand share 32Review moat 35Quality gap 28
**Avg price**
**Incredible****$31.56**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$12.27–$64.09**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****3,032.07**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$38K**
$38K/yr · 209K searches
**Conversion**
**Bad****0.6%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****10.9%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-83.8%**
90-day search growth — must beat 0% to launch
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is long sleeve running shirt profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, long sleeve running shirt is a $38K/yr Amazon United States market (209K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jan–Feb–Oct–Nov–Dec. Verdict: Skip it — 28/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **long sleeve running shirt 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**
- **$63K–$79K**
- units × avg price
- **Conversion rate**
- **0.6%**
- **Avg BSR**
- **#810**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **68%**
- **Out of stock**
- **5.1%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **139 days**
## **Competition: brands, sellers & click share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▼falling
**Sellers**
**83**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 90%
**Open market**
**12%**
- WEERTI32% - Under Armour22% - Cuddl Duds19% - Spyder7% - 32 Degrees5% - Merino.tech2% - Open — no brand owns it (6 brands, 12%)
## **long sleeve running shirt demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -83.8% search growth over the last 90 days.
15K10KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 18.6×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-running-shirt/trend)
## **Top long sleeve running shirt search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **under armour cold gear women**40K/yr-84.9%1.0% conv. - **thermal pajamas for women**39K/yr-82.8%0.2% conv. - **cold gear women**24K/yr-83.3%0.5% conv. - **base layer pants women**10K/yr-72.4%0.7% conv. - **womens base layer pants**6K/yr-62.8%0.4% conv. - **under armor cold gear for women**9K/yr-79.1%0.5% conv. - **womens base layer bottoms**12K/yr-86.8%0.4% conv. - **base layer leggings women**7K/yr-77.0%0.4% conv. - **under armour base layer women**6K/yr-76.5%0.0% conv. - **under armour coldgear women**6K/yr-79.1%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/long-sleeve-running-shirt/search-terms)
## **Top long sleeve running shirt 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%10%$4K20%$8K30%$11K40%$15K101001K10K100K 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**WEERTI Thermal Underwear for Women Long Johns with Fleece Lined Base Layer Women Cold Weather Top Bottom-Black M**WEERTI**$26.43**4.5★12,937 rev](https://www.amazon.com/dp/B088H5DWV3) [2**Cuddl Duds Womens Heavyweight Fleece 2 Piece Long Sleeve Thermal Underwear Set Shirt & Leggings Base Layer for Cold Weather Winter Clothing Long Johns Lounge Sets for Women Black M**Cuddl Duds**$34.25**4.7★6,365 rev](https://www.amazon.com/dp/B0BV8QGYDY) [3**Under Armour Womens ColdGear Authentics Leggings Black (001)/White Medium**Under Armour**$42.08**4.5★1,452 rev](https://www.amazon.com/dp/B08LNWXNDM) [4**32 Degrees Womens 2 Pack Performance Ultra Light Thermal Baselayer Legging Pant Black/Black Small**32 Degrees**$14.77**4.3★346 rev](https://www.amazon.com/dp/B0B95CP14L) [5**Under Armour Womens Authentics Long Sleeves Crew Neck T-Shirt White (100)/Black Medium**Under Armour**$42.20**4.7★819 rev](https://www.amazon.com/dp/B08LMYZF3M)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Cuddl Duds Womens Heavyweight Fleece 2 Piece Long Sleeve Thermal Underwear Set Shirt & Leggings Base Layer for Cold Weather Winter Clothing Long Johns Lounge Sets for Women Navy Blue XXS**Cuddl Duds**$32.99**6,365 rev10mo ago](https://www.amazon.com/dp/B0FQWB6FKD) [**Spyder Womens Micro French Terry Base Layer Thermal Long Johns Bottom Black Small**Spyder**$12.27**26 rev10mo ago](https://www.amazon.com/dp/B0FPT11F17) [**Spyder Womens Micro French Terry Base Layer Thermal Long Johns Bottom Heather Grey X-Large**Spyder**$12.64**26 rev10mo ago](https://www.amazon.com/dp/B0FPSNM9V1) [**HiZiTi Thermal Underwear for Women Long Johns Set Fleece Lined Warm Black Base Layer Long Sleeve Shirt Leggings for Cold Weather Top & Bottom Skiing Pajama Winter M**HiZiTi**$15.63**972 rev10mo ago](https://www.amazon.com/dp/B0FHKLSDR4) [**2 Packs Thermal Underwear for Women Long Johns Set for Cold Weather Base Layer Top & Bottom with Fleece Lined**persimar**$28.24**139 rev1y ago](https://www.amazon.com/dp/B0FDWLWL6S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Spyder Womens Micro French Terry Base Layer Thermal Long Johns Bottom Heather Grey X-Large**Spyder**$12.64**4.7★**▲ 290%**](https://www.amazon.com/dp/B0FPSNM9V1) [**Spyder Womens Micro French Terry Base Layer Thermal Long Johns Bottom Black Small**Spyder**$12.27**4.7★**▲ 273%**](https://www.amazon.com/dp/B0FPT11F17) [**2 Packs Thermal Underwear for Women Long Johns Set for Cold Weather Base Layer Top & Bottom with Fleece Lined**persimar**$28.24**4.5★**▲ 231%**](https://www.amazon.com/dp/B0FDWLWL6S) [**Cuddl Duds Womens Heavyweight Fleece 2 Piece Long Sleeve Thermal Underwear Set Shirt & Leggings Base Layer for Cold Weather Winter Clothing Long Johns Lounge Sets for Women Navy Blue XXS**Cuddl Duds**$32.99**4.7★**▲ 153%**](https://www.amazon.com/dp/B0FQWB6FKD) [**DEVOPS Womens 2 Pack Thermal Long Sleeve Shirts Compression Baselayer Tops (X-Small Black/White)**DEVOPS**$23.17**4.6★**▲ 150%**](https://www.amazon.com/dp/B07SPD57GT)
**~~View all trending →~~**
## **What reviews say buyers love and hate about long sleeve running shirt**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Warmth**32%
*“Keeps me warm”*
**Size-Overall**14%
*“the pants fit great”*
**Comfort-Overall**9%
*“Very Comfortable”*
**Quality-Overall**7%
*“Everything was well made”*
**Soft Feel**6%
*“Softest fabric ever”*
**Value For Money**3%
*“WORTH THE PRICE”*
**Weight Light**2%
*“it is lightweight feel”*
**Advertised Vs Actual Product**2%
*“It works as expected”*
**Water Resistance**1%
*“Im still blown away by the waterproof experience”*
**Material Quality**1%
*“The material is warm”*
### **What buyers complain about **
**Size-Overall**14%
*“Way too small”*
**Warmth**9%
*“Not that warm”*
**Thickness**4%
*“I thought the material was thinner”*
**Water Resistance**3%
*“peels quickly leaving no waterproof protection”*
**Suitability Winter Weather**3%
*“they did not keep my hands warm this Winter”*
**Advertised Vs Actual Product**3%
*“Different than expected”*
**Quality-Overall**2%
*“Made very cheap”*
**Smell**2%
*“they develop a strong smell — think high school locker room”*
**Functionality-Overall**2%
*“Doesn't work”*
**Stretchability/Expandability/Elasticity**2%
*“Elastic band is very tight”*
### **Top return reasons **
**Size-Overall**58%
**Waist Fit**5%
**Length**5%
**Material Quality**4%
**Warmth**3%
**Advertised Vs Actual Product**3%
**Weight Heavy**2%
**Value For Money**2%
**Thickness**2%
**Thin**1%
## **Common long sleeve running shirt questions**
- **Is long sleeve running shirt profitable to sell on Amazon United States?**
- The niche generates $38K/yr across 28 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -83.8%. Flapen's verdict: Skip it (28/100).
- **How competitive is the long sleeve running shirt niche?**
- 12 brands and 83 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in long sleeve running shirt?**
- Top complaints mined from reviews: Size-Overall, Warmth, Thickness. The return rate is 10.9% — above our launch gate.
- **When does demand for long sleeve running shirt peak?**
- Demand peaks in Jan–Feb–Oct–Nov–Dec; the busiest month runs 18.6× the quietest.
- **What does it cost to enter the long sleeve running shirt niche?**
- Listings span $12.27–$64.09; the average listing price is $31.56 (sweet spot $15–$100). The average incumbent carries 3,032 reviews — the moat a new listing must climb.
## **Related niches to research next**
Same-category niches scoring near this one — the next ones worth researching.
- 72 [**first communion gifts for boys**](https://flapen.com/research/us/clothing-shoes-jewelry/first-communion-gifts-for-boys)$398K/yr+223.5%**Worth a look**- 72 [**fifa world cup 2026 tshirt**](https://flapen.com/research/us/clothing-shoes-jewelry/fifa-world-cup-2026-tshirt)$177K/yr>1,000%**Worth a look**- 72 [**american flag hat**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-hat)$764K/yr+428.8%**Worth a look**- 72 [**white socks men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-socks-men)$3.0M/yr+13.3%**Launch it**- 72 [**american flag overalls**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-overalls)$662K/yr>1,000%**Worth a look**- 73 [**white ankle socks for men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-ankle-socks-for-men)$448K/yr+88.3%**Worth a look**[**All Clothing, Shoes & Jewelry niches **](https://flapen.com/research/us/clothing-shoes-jewelry)