---
title: "Kirkland Underwear Men — $4K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/kirkland-underwear-men"
last_updated: "2026-08-12T18:01:25.508Z"
locale: en
meta:
description: "Amazon product research for kirkland underwear men: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for kirkland underwear men: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Kirkland Underwear Men — $4K/mo Amazon US Product Research"
---
# **Kirkland Underwear Men**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 12Growth 50Conversion 52Competition 47Returns 89Price range 95Avg price 95Brand share 0Review moat 18Quality gap 27
**Avg price**
**Incredible****$34.51**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$15.15–$51.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****4.3%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+20.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****16,775.08**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$46K**
$46K/yr · 31K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is kirkland underwear men profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, kirkland underwear men is a $46K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 43/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kirkland underwear men market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$52K–$69K**
- units × avg price
- **Conversion rate**
- **4.3%**
- **Avg BSR**
- **#379**
- **Page quality**
- **0%**
- **Prime**
- **84%**
- **Sponsored**
- **64%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **135 days**
## **Competition: brands, sellers & click share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**5 **▲rising
**Sellers**
**58**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 92%
**Open market**
**0%**
- KIRKLAND58% - BAMBOO COOL33% - Hanes6% - Champion2% - Amazon Essentials2% - Open — no brand owns it (0%)
## **Top kirkland underwear men search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **kirkland underwear men**11K/yr+14.4%3.9% conv. - **kirkland boxer briefs men**8K/yr+11.4%3.8% conv. - **kirkland mens underwear**7K/yr+36.3%4.0% conv. - **kirkland boxer briefs**3K/yr+43.8%2.2% conv. - **kirkland boxers**2K/yr+9.6%3.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/kirkland-underwear-men/search-terms)
## **Top kirkland underwear 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%10%$5K20%$9K30%$14K40%$18K101001K10K100K1.0M 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**Kirkland Signature Mens Boxer Brief Pima Cotton 4 Pack (Large Black)**KIRKLAND**$27.68**4.6★2,309 rev](https://www.amazon.com/dp/B00RNFPU5U) [2**Kirkland Signature Mens Boxer Brief Multicolor Pack Large (Pack of 4)**KIRKLAND**$29.77**4.6★2,309 rev](https://www.amazon.com/dp/B08D72CS37) [3**BAMBOO COOL Mens Underwear Breathable Boxer Briefs with Fly Moisture-Wicking Lightweight Underwear**BAMBOO COOL**$45.73**4.7★4,351 rev](https://www.amazon.com/dp/B0CGLWJH26) [4**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) [5**Kirkland Signature Mens Boxer Brief Pima Cotton 4 Pack (X-Large Black)**KIRKLAND**$27.41**4.6★2,309 rev](https://www.amazon.com/dp/B00RNFPU3W)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**BAMBOO COOL Mens Underwear Breathable Boxer Briefs with Fly Moisture-Wicking Lightweight Underwear**BAMBOO COOL**$45.73**4,351 rev2y ago](https://www.amazon.com/dp/B0CGLWJH26) [**BAMBOO COOL Mens Underwear Breathable Boxer Briefs with Fly Moisture-Wicking Lightweight Underwear**BAMBOO COOL**$45.67**4,351 rev2y ago](https://www.amazon.com/dp/B0CGLXCGRC) [**Kirkland Signature Mens Boxer Brief Pima Cotton 4 Pack Black XX-Large**KIRKLAND**$30.90**20 rev2y ago](https://www.amazon.com/dp/B0CX9DJWCT) [**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.75**7,311 rev2y ago](https://www.amazon.com/dp/B0CNJS9K87) [**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.71**7,311 rev2y ago](https://www.amazon.com/dp/B0CNJQC42M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.71**4.6★**▲ 128%**](https://www.amazon.com/dp/B0CNJQC42M) [**Hanes Men Hanes Boxer Briefs Cool Dri Moisture-Wicking Underwear Cotton No-Ride-up for Men Multi-Packs Available**Hanes**$35.49**4.5★**▲ 124%**](https://www.amazon.com/dp/B09G4T3V2P) [**BAMBOO COOL Mens Ultra ComfortSoft Underwear Moisture Wicking & Breathable No Ride Up Boxer Briefs with Fly Multipack**BAMBOO COOL**$50.96**4.6★**▲ 121%**](https://www.amazon.com/dp/B0CNJT7T35) [**Champion Mens Everyday Cotton Stretch- 5 Pack -Boxer Briefs Cotton Stretch Total Support Pouch Moisture-Wicking No Ride-Up Fit**Champion**$30.29**4.6★**▲ 104%**](https://www.amazon.com/dp/B09PF6Q6YV) [**BAMBOO COOL Mens Underwear Breathable Boxer Briefs with Fly Moisture-Wicking Lightweight Underwear**BAMBOO COOL**$45.67**4.7★**▲ 104%**](https://www.amazon.com/dp/B0CGLXCGRC)
**~~View all trending →~~**
## **What reviews say buyers love and hate about kirkland underwear men**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**26%
*“very comfortable to wear”*
**Size-Overall**15%
*“Fit as well as expected”*
**Quality-Overall**10%
*“They are decently made other than that”*
**Soft Feel**5%
*“Comfortable and soft”*
**Breathability**5%
*“Breathes well”*
**Value For Money**5%
*“They are affordable”*
**Material Quality**4%
*“Very breathable material”*
**Durability**2%
*“Well made and durable”*
**Advertised Vs Actual Product**2%
*“As described”*
**Color**2%
*“beautiful colors”*
### **What buyers complain about **
**Size-Overall**13%
*“Run a little small”*
**Quality-Overall**8%
*“Low quality”*
**Material Quality**8%
*“Bad material”*
**Comfort-Overall**8%
*“not as comfortable as it used to be”*
**Durability**6%
*“Not very durable”*
**Stretchability/Expandability/Elasticity**6%
*“No elasticity at all”*
**Thigh Fit**5%
*“To tight on the thigh”*
**Advertised Vs Actual Product**3%
*“False advertisement”*
**Waist Fit**3%
*“They have wider waist bands”*
**Value For Money**3%
*“Not worth the price”*
### **Top return reasons **
**Size-Overall**45%
**Thigh Fit**11%
**Waist Fit**11%
**Material Quality**10%
**Length**7%
**Advertised Vs Actual Product**3%
**Comfort-Overall**2%
**Value For Money**2%
**Quality-Overall**1%
**Thin**1%
## **Common kirkland underwear men questions**
- **Is kirkland underwear men profitable to sell on Amazon United States?**
- The niche generates $46K/yr across 25 tracked products. 90-day search growth is +20.0%. Flapen's verdict: Skip it (43/100).
- **How competitive is the kirkland underwear men niche?**
- 5 brands and 58 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in kirkland underwear men?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 1.3%.
- **What does it cost to enter the kirkland underwear men niche?**
- Listings span $15.15–$51.01; the average listing price is $34.51 (sweet spot $15–$100). The average incumbent carries 16,775 reviews — the moat a new listing must climb.
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