---
title: "2undr Mens Underwear — $46K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/2undr-mens-underwear"
last_updated: "2026-08-07T18:18:31.174Z"
locale: en
meta:
description: "Niche score 47/100 · $46K/yr market · 141K searches/yr · $43.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $46K/yr market · 141K searches/yr · $43.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "2undr Mens Underwear — $46K/yr Amazon US Niche (2026) - Flapen"
---
# **2undr mens underwear**
**Skip it**
Weak search conversion (0.8%) — this niche doesn't clear our bar today.
Market size 11Growth 24Conversion 9Competition 92Returns 72Price range 93Avg price 95Brand share 44Review moat 23Quality gap 43
**Avg price**
**Incredible****$43.46**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.55–$90.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****23%**
top-5 click share — an open shelf
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-1.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****7,206.17**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$46K**
$46K/yr · 141K searches
**Conversion**
**Bad****0.8%**
search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, 2undr mens underwear is a $46K/yr Amazon United States market (141K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 47/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **2undr mens underwear market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$43K–$54K**
- units × avg price
- **Conversion rate**
- **0.8%**
- **Avg BSR**
- **#114**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **98%**
- **Out of stock**
- **1.9%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **155 days**
## **Competition & brand share**
Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.
**Brands**
**28 **▲rising
**Sellers**
**73**
**Top-5 brand share**
**78%**
Top 20: 96%
**Top-5 click share**
**23%**
Top 20: 47%
**Open market**
**19%**
- BAMBOO COOL44% - 2UNDR14% - SAXX Underwear Co.13% - Tommy John5% - Calvin Klein3% - TAILONG2%
## **Top 2undr mens underwear search terms**
- **mack weldon**43K/yr+3.6%0.2% conv. - **2undr mens underwear**33K/yr+3.6%1.2% conv. - **skims men**21K/yr-20.0%0.1% conv. - **lululemon underwear**12K/yr+17.6%0.3% conv. - **whoop underwear men**8K/yr-1.0%0.0% conv. - **crz yoga mens underwear**5K/yr+48.6%0.4% conv. - **mens skims**6K/yr-30.7%0.1% conv. - **skims mens**5K/yr-10.2%0.1% conv. - **patagonia mens underwear**5K/yr-20.2%0.1% conv. - **patagonia underwear men**3K/yr+3.3%0.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/2undr-mens-underwear/search-terms)
## **Top 2undr mens underwear 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%$9174%$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**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.24**4.6★9,363 rev](https://www.amazon.com/dp/B0B3LWGP36) [2**BAMBOO COOL Mens Underwear Boxer Briefs Soft Breathable Performance Underwear for Men 4 Pack (M)**BAMBOO COOL**$28.58**4.6★6,068 rev](https://www.amazon.com/dp/B0BRK59KJH) [3**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.75**4.6★7,311 rev](https://www.amazon.com/dp/B0CNJS9K87) [4**SAXX Underwear Co. Mens Core Performance Mesh Boxer Brief 3-Pack Black/Graphite/Athletic Large**SAXX Underwear Co.**$46.84**4.6★873 rev](https://www.amazon.com/dp/B0F5HZGZ84) [5**BAMBOO COOL Mens Underwear Breathable Boxer Briefs with Fly Moisture-Wicking Lightweight Underwear**BAMBOO COOL**$44.47**4.7★4,351 rev](https://www.amazon.com/dp/B0CGLWQVWR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2UNDR Swing Shift 6 Mens Boxer Brief 3-Pack Mens Pouch Underwear with Patented Joey Pouch Modal Underwear Men Moisture Wicking Large Stroke/Gold/Swingers**2UNDR**$89.67**366 rev5mo ago](https://www.amazon.com/dp/B0GFPZBXS4) [**2UNDR Swing Shift 6 Mens Boxer Brief 3-Pack Mens Pouch Underwear with Patented Joey Pouch Modal Underwear Men Moisture Wicking Large 2 Ballsey/Cart/Margarita**2UNDR**$86.42**366 rev5mo ago](https://www.amazon.com/dp/B0GFPRQD28) [**SAXX Underwear Co. Mens Core Performance Mesh Boxer Brief 3-Pack Black/Graphite/Athletic Large**SAXX Underwear Co.**$46.84**873 rev1y ago](https://www.amazon.com/dp/B0F5HZGZ84) [**SAXX Underwear Co. Mens Core Cotton Boxer Brief Fly 3-Pack Black/Graphite Medium**SAXX Underwear Co.**$45.70**759 rev1y ago](https://www.amazon.com/dp/B0F5HZWLDD) [**Mens Bamboo Underwear 4-Pack - Ultra Soft Anti-Roll Waistband Tagless Trunks**BAMBOO COOL**$33.81**84 rev1y ago](https://www.amazon.com/dp/B0DYSBFT2B)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2UNDR Swing Shift 6 Mens Boxer Brief 3-Pack Mens Pouch Underwear with Patented Joey Pouch Modal Underwear Men Moisture Wicking Large 2 Ballsey/Cart/Margarita**2UNDR**$86.42**4.8★**▲ 47%**](https://www.amazon.com/dp/B0GFPRQD28) [**Merino Wool T-Shirt Mens - Merino Wool Undershirt Thermal Shirt for Men and Hiking Socks (Deep Blue Large)**Merino.tech**$39.78**4.3★**▲ 45%**](https://www.amazon.com/dp/B08X2YWTTP) [**SAXX Underwear Co. Mens Core Performance Mesh Boxer Brief 3-Pack Black/Graphite/Athletic Large**SAXX Underwear Co.**$46.84**4.6★**▲ 43%**](https://www.amazon.com/dp/B0F5HZGZ84) [**Tommy John Mens Luxe Modal 4 Trunk Boxer Brief Underwear 3-Pack Black/Turbulence/Monument Large**Tommy John**$34.52**4.2★**▲ 43%**](https://www.amazon.com/dp/B0DX4J3W69) [**BAMBOO COOL Mens Soft Underwear 4-Pack No Ride Up Boxer Briefs with Fly Moisture Wicking & Breathable underwear for Men**BAMBOO COOL**$28.47**4.6★**▲ 41%**](https://www.amazon.com/dp/B0C6136GFR)
**~~View all trending →~~**
## **What buyers say about 2undr mens underwear**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**28%
*“comfortable to wear”*
**Size-Overall**15%
*“Fit like a glove”*
**Quality-Overall**9%
*“true to size, great quality”*
**Soft Feel**7%
*“Soft fabric”*
**Value For Money**5%
*“They are affordable”*
**Breathability**5%
*“Awesome breathability”*
**Material Quality**4%
*“Good material”*
**Advertised Vs Actual Product**2%
*“Exactly as advertised”*
**Color**2%
*“The colors are vibrant”*
**Weight Light**2%
*“They are lightweight and breathable”*
### **What buyers complain about **
**Size-Overall**16%
*“Buy one size larger”*
**Quality-Overall**7%
*“Product is low quality”*
**Comfort-Overall**6%
*“Extremely uncomfortable”*
**Material Quality**6%
*“Poor quality material”*
**Durability**5%
*“they are falling apart”*
**Stretchability/Expandability/Elasticity**4%
*“Stretched out”*
**Thickness**4%
*“Very thick material even when theyre stretched out a bit”*
**Value For Money**4%
*“Not Worth the Price”*
**Advertised Vs Actual Product**3%
*“False advertisement”*
**Waist Fit**3%
*“even though the waist wasnt even close to too tight”*
### **Top return reasons **
**Size-Overall**49%
**Waist Fit**9%
**Material Quality**9%
**Length**5%
**Thigh Fit**5%
**Advertised Vs Actual Product**3%
**Chest Fit**2%
**Thin**2%
**Comfort-Overall**2%
**Shape/Style**1%
## **Common questions**
- **Is 2undr mens underwear profitable to sell on Amazon United States?**
- The niche generates $46K/yr across 94 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -1.1%. Flapen's verdict: Skip it (47/100).
- **How competitive is the 2undr mens underwear niche?**
- 28 brands and 73 sellers compete. The top 5 products take 23% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in 2undr mens underwear?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Comfort-Overall. The return rate is 2.1%.
- **What does it cost to enter the 2undr mens underwear niche?**
- Listings span $13.55–$90.45; the average listing price is $43.46 (sweet spot $15–$100). The average incumbent carries 7,206 reviews — the moat a new listing must climb.
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