---
title: "Mens Underwear — $2.3M/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/mens-underwear"
last_updated: "2026-08-12T10:52:08.392Z"
locale: en
meta:
description: "Amazon product research for mens underwear: $2.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mens underwear: $2.3M/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mens Underwear — $2.3M/mo Amazon US Product Research (2026)"
---
# **Mens Underwear**
**Launch it**
A $27.7M/yr market growing +9.1% this quarter with returns at 2.0% — clears our launch bar.
Market size 100Growth 36Conversion 26Competition 96Returns 75Price range 87Avg price 95Brand share 31Review moat 9Quality gap 35
**Market size**
**Incredible****$27.7M**
$27.7M/yr · 45.4M searches
**Competition**
**Incredible****15%**
top-5 click share — an open shelf
**Avg price**
**Incredible****$29.37**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.20–$60.28**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.0%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+9.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.1%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****33,808.11**
avg incumbent reviews — the moat a new listing must climb
## **Is mens underwear profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mens underwear is a $27.7M/yr Amazon United States market (45.4M searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Dec. Verdict: Launch it — 61/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mens underwear market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **800K–1.0M**
- avg 5,000–6,000/product
- **Revenue / yr**
- **$23.5M–$29.4M**
- units × avg price
- **Conversion rate**
- **2.1%**
- **Avg BSR**
- **#43**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **129 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.
**Brands**
**26 **▼falling
**Sellers**
**141**
**Top-5 brand share**
**86%**
Top 20: 99%
**Top-5 click share**
**15%**
Top 20: 39%
**Open market**
**9%**
- BAMBOO COOL33% - Hanes31% - ROSTITCH8% - Calvin Klein7% - Fruit of the Loom7% - Champion4% - Open — no brand owns it (20 brands, 9%)
## **mens underwear demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +9.1% search growth over the last 90 days.
1.8M1.3MSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/mens-underwear/trend)
## **Top mens underwear search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mens underwear**12.1M/yr+3.0%1.1% conv. - **mens boxer briefs**4.0M/yr+0.2%1.3% conv. - **boxers for men**3.8M/yr+3.6%1.2% conv. - **mens boxers**2.6M/yr+7.8%1.3% conv. - **calvin klein underwear for men**2.8M/yr+2.4%1.2% conv. - **underwear for men pack**2.4M/yr+11.0%1.6% conv. - **calvin klein**2.5M/yr+11.8%0.1% conv. - **hanes underwear men**2.2M/yr+9.0%1.9% conv. - **boxer briefs for men pack**1.5M/yr+6.7%1.7% conv. - **boxers**1.4M/yr+11.5%1.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/mens-underwear/search-terms)
## **Top mens underwear 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%1%$277K2%$555K3%$832K4%$1.1M1001K10K100K1.0M 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**BAMBOO COOL Mens Ultra Breathable Underwear No Riding Up Boxer Briefs with ComfortFlexible Waistband Multipack**BAMBOO COOL**$32.46**4.5★16,388 rev](https://www.amazon.com/dp/B088WF1PRW) [2**ROSTITCH Mens underwear Cotton Boxer Briefs Large 4pack Multipack**ROSTITCH**$13.94**4.5★973 rev](https://www.amazon.com/dp/B0DQKDZJKG) [3**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) [4**ROSTITCH Mens underwear Cotton Boxer Briefs Large 8pack Multipack**ROSTITCH**$27.48**4.5★440 rev](https://www.amazon.com/dp/B0FCDVY4RR) [5**BAMBOO COOL Mens Underwear Boxer Briefs Soft Breathable Performance Underwear for Men 4 Pack (L)**BAMBOO COOL**$28.11**4.6★6,068 rev](https://www.amazon.com/dp/B0BRK4SLFT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hanes Mens Underwear Brief Pack Dyed Cotton Briefs Moisture-Wicking Underwear for Men Mid-Rise 12-Pack**Hanes**$33.18**14,239 rev10mo ago](https://www.amazon.com/dp/B0FNRM4TZD) [**ROSTITCH Mens underwear Ultra Cool Boxer Briefs Medium 6pack Multipack**ROSTITCH**$21.74**292 rev1y ago](https://www.amazon.com/dp/B0G3H339W4) [**Hanes Mens Boxer Brief Underwear Cool DRI Moisture-Wicking Underwear for Men 6-Pack**Hanes**$19.96**135,847 rev1y ago](https://www.amazon.com/dp/B0F3L6GWCQ) [**ROSTITCH Mens underwear Cotton Boxer Briefs Large 4pack Multipack**ROSTITCH**$13.94**973 rev1y ago](https://www.amazon.com/dp/B0DQKDZJKG) [**ROSTITCH Mens underwear Cotton Boxer Briefs Large 8pack Multipack**ROSTITCH**$27.48**440 rev1y ago](https://www.amazon.com/dp/B0FCDVY4RR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ROSTITCH Mens underwear Ultra Cool Boxer Briefs Medium 6pack Multipack**ROSTITCH**$21.74**4.6★**▲ 49%**](https://www.amazon.com/dp/B0G3H339W4) [**Hanes Mens Underwear Brief Pack Dyed Cotton Briefs Moisture-Wicking Underwear for Men Mid-Rise 12-Pack**Hanes**$33.18**4.5★**▲ 38%**](https://www.amazon.com/dp/B0FNRM4TZD) [**Hanes Mens Boxer Brief Underwear Cool DRI Moisture-Wicking Underwear for Men 6-Pack**Hanes**$19.96**4.5★**▲ 36%**](https://www.amazon.com/dp/B0F3L6GWCQ) [**ROSTITCH Mens underwear Cotton Boxer Briefs Large 8pack Multipack**ROSTITCH**$27.48**4.5★**▲ 36%**](https://www.amazon.com/dp/B0FCDVY4RR) [**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.96**4.6★**▲ 35%**](https://www.amazon.com/dp/B0CNJT7T35)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mens underwear**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**23%
*“Excellent Comfortable”*
**Size-Overall**21%
*“Fit like a glove”*
**Quality-Overall**12%
*“Decent Quality”*
**Value For Money**7%
*“They are affordable”*
**Soft Feel**5%
*“soft on the skin”*
**Breathability**3%
*“Awesome breathability”*
**Material Quality**3%
*“Comfortable material”*
**Advertised Vs Actual Product**2%
*“Exactly as pictured”*
**Color**2%
*“bright color”*
**Durability**2%
*“Durable soft”*
### **What buyers complain about **
**Size-Overall**19%
*“Too short”*
**Quality-Overall**10%
*“Low quality”*
**Comfort-Overall**7%
*“uncomfortably tight”*
**Stretchability/Expandability/Elasticity**7%
*“do not stretch”*
**Material Quality**6%
*“Bad material”*
**Durability**4%
*“Poor durability”*
**Thigh Fit**4%
*“To tight on the thigh”*
**Thickness**3%
*“Same design thinner material”*
**Waist Fit**3%
*“Runs small in waist size”*
**Advertised Vs Actual Product**2%
*“False advertising”*
### **Top return reasons **
**Size-Overall**46%
**Waist Fit**13%
**Material Quality**10%
**Thigh Fit**8%
**Length**6%
**Advertised Vs Actual Product**3%
**Comfort-Overall**2%
**Thin**1%
**Value For Money**1%
**Quality-Overall**1%
## **Common mens underwear questions**
- **Is mens underwear profitable to sell on Amazon United States?**
- The niche generates $27.7M/yr across 151 tracked products. 23 of 25 products launched in the last 360 days are still selling. 90-day search growth is +9.1%. Flapen's verdict: Launch it (61/100).
- **How competitive is the mens underwear niche?**
- 26 brands and 141 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in mens underwear?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Comfort-Overall. The return rate is 2.0%.
- **When does demand for mens underwear peak?**
- Demand peaks in Dec; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the mens underwear niche?**
- Listings span $10.20–$60.28; the average listing price is $29.37 (sweet spot $15–$100). The average incumbent carries 33,808 reviews — the moat a new listing must climb.
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