---
title: "Mens String Bikini Underwear — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/mens-string-bikini-underwear"
last_updated: "2026-08-12T07:28:16.872Z"
locale: en
meta:
description: "Amazon product research for mens string bikini underwear: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mens string bikini underwear: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mens String Bikini Underwear — Amazon US Product Research"
---
# **Mens String Bikini Underwear**
**Worth a look**
Shows a sweet-spot price point ($23.07 avg), but weak search conversion (0.7%) keeps it on the watch list.
Market size 15Growth 39Conversion 8Competition 88Returns 65Price range 77Avg price 95Brand share 73Review moat 25Quality gap 57
**Avg price**
**Incredible****$23.07**
avg listing price — sweet spot $15–$100
**Competition**
**Great****27%**
top-5 click share — an open shelf
**Price range**
**Great****$5.27–$49.62**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+10.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****4,384.14**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$59K**
$59K/yr · 380K searches
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
## **Is mens string bikini underwear profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mens string bikini underwear is a $59K/yr Amazon United States market (380K searches/yr). The top 5 brands hold 61% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mens string bikini underwear market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$58K–$69K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#60**
- **Page quality**
- **0%**
- **Prime**
- **99%**
- **Sponsored**
- **89%**
- **Out of stock**
- **2.2%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **134 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.
**Brands**
**24 **▲rising
**Sellers**
**54**
**Top-5 brand share**
**61%**
Top 20: 98%
**Top-5 click share**
**27%**
Top 20: 55%
**Open market**
**34%**
- Hanes21% - Avidlove15% - BAMBOO COOL12% - U.S. POLO ASSN.8% - HOOFESAN6% - AMERICAN HEAVEN5%
## **mens string bikini underwear demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +10.9% search growth over the last 90 days.
15K10KPrime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/mens-string-bikini-underwear/trend)
## **Top mens string bikini underwear search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mens bikini**56K/yr+20.6%0.1% conv. - **bikini briefs for men**48K/yr+14.8%0.4% conv. - **men bikini underwear**35K/yr+6.5%0.3% conv. - **bikini para hombre**27K/yr+7.8%0.2% conv. - **mens underwear bikini**28K/yr-0.0%0.5% conv. - **mens bikini briefs underwear**34K/yr+9.6%0.5% conv. - **bikini underwear for men**18K/yr+22.7%0.3% conv. - **mens bikini underwear cotton**10K/yr+10.6%0.4% conv. - **bikini underwear for men pack**15K/yr+25.7%0.8% conv. - **mens micro briefs**13K/yr+11.2%0.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/mens-string-bikini-underwear/search-terms)
## **Top mens string bikini 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%3%$2K6%$4K9%$5K12%$7K101001K10K100K 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**Hanes Mens Bikini Pack Moisture-Wicking Stretch Odor Control Bikini Underwear 6-Pack Random Assortment Medium**Hanes**$19.87**4.4★9,811 rev](https://www.amazon.com/dp/B086L16L4L) [2**Avidlove Underwear Mens 4 Pack Classic Low Rise Stretchy Hip Briefs Bikini**Avidlove**$16.35**4.3★4,321 rev](https://www.amazon.com/dp/B01FSQE1FU) [3**U.S. Polo Assn. Mens Bikini Underwear - 12 Pack Cotton Blend String Classic Stretch Mens Brief with Contour Pouch Size XX-Large Red/Blue/Heather Grey/Magenta- String**U.S. POLO ASSN.**$10.97**4.4★1,217 rev](https://www.amazon.com/dp/B0D32314FR) [4**Hanes Mens Bikini Pack Moisture-Wicking Stretch Cotton Bikini 6-Pack Odor Control Bikini Underwear 6-Pack Large Assorted colors**Hanes**$19.99**4.4★9,811 rev](https://www.amazon.com/dp/B086L5PJRM) [5**AMERICAN HEAVEN Mens 12 Pack Sport Bikini Briefs | 100% Cotton**AMERICAN HEAVEN**$27.60**4.3★1,898 rev](https://www.amazon.com/dp/B01EM99ZE6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hgn Mens Viscose Underwear Briefs Ultra Comfort Lightweight Sexy Bikini Briefs 4Pack Orange**Hgn**$22.80**48 rev7mo ago](https://www.amazon.com/dp/B0G58FNFNH) [**Hgn Mens Viscose Underwear Briefs Ultra Comfort Lightweight Sexy Bikini Briefs 4Pack Orange**Hgn**$23.16**48 rev7mo ago](https://www.amazon.com/dp/B0G58DF5YG) [**LPCSS Mens Ice Silk Underwear Low Rise Bikini Briefs Cooling Soft Stretch Breathable 4-Pack E726 (US Alpha 3X-Large Regular Regular White + White + Black + Black)**LPCSS**$37.59**15 rev1y ago](https://www.amazon.com/dp/B0FD9ZKMPY) [**BAMBOO COOL Mens Bikini Underwear Soft Breathable Mens Bikini Briefs Tagless Mens Sexy Underwear with Contour Pouch 5 Pack**BAMBOO COOL**$30.64**120 rev1y ago](https://www.amazon.com/dp/B0DYNS24JX) [**HOOFESAN Mens Underwear Micro Modal Bikini Briefs Low Rise Half Back Coverage Silky Touch Underpants Multipack**HOOFESAN**$33.92**901 rev1y ago](https://www.amazon.com/dp/B0DW8BYNX7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**U.S. Polo Assn. Mens Bikini Underwear - 12 Pack Cotton Blend String Classic Stretch Mens Brief with Contour Pouch Size XX-Large Red/Blue/Heather Grey/Magenta- String**U.S. POLO ASSN.**$10.97**4.4★**▲ 49%**](https://www.amazon.com/dp/B0D32314FR) [**Molasus Mens Breathable Cotton Briefs Underwear No Fly Covered Waistband Underpants Multicolor 4 Pack Size L**Molasus**$22.86**4.6★**▲ 48%**](https://www.amazon.com/dp/B0BBMKG6SV) [**Hgn Mens Viscose Underwear Briefs Ultra Comfort Lightweight Sexy Bikini Briefs 4Pack Orange**Hgn**$23.16**4.3★**▲ 46%**](https://www.amazon.com/dp/B0G58DF5YG) [**BAMBOO COOL Mens Bikini Underwear Contour Pouch Breathable Soft Mens String Bikini Briefs Tagless Mens Sexy Underwear 4 Pack**BAMBOO COOL**$28.99**4.6★**▲ 44%**](https://www.amazon.com/dp/B0D4YS6J8B) [**Beverly Hills Polo Club Mens Mens 5 Pack Low Rise Brief Underwear Navy Dark Shadow Grey Bright Blue Black Medium**Beverly Hills Polo Club**$11.08**4.3★**▲ 38%**](https://www.amazon.com/dp/B01NA0JW53)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mens string bikini underwear**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**25%
*“Fits like a glove”*
**Comfort-Overall**22%
*“Good comfortable”*
**Quality-Overall**11%
*“They also seem well-made”*
**Soft Feel**5%
*“Material is soft”*
**Color**5%
*“Great colors”*
**Value For Money**4%
*“Great Price”*
**Material Quality**4%
*“Very soft material”*
**Stretchability/Expandability/Elasticity**2%
*“stretchy”*
**Advertised Vs Actual Product**1%
*“As advertised”*
**Durability**1%
*“durability good”*
### **What buyers complain about **
**Size-Overall**25%
*“very large”*
**Quality-Overall**8%
*“Low quality”*
**Material Quality**5%
*“The material feels gross”*
**Stretchability/Expandability/Elasticity**4%
*“Elastic is not comfortable”*
**Color**4%
*“you most likely will NOT receive the colors shown in the ad”*
**Shrinkage Resistance**4%
*“Some shrinkage is”*
**Comfort-Overall**3%
*“Not very comfortable”*
**Durability**3%
*“don't last”*
**Stitch/Finish/Polish**3%
*“bad stitching”*
**Thickness**2%
*“thinner than expected”*
### **Top return reasons **
**Size-Overall**51%
**Waist Fit**12%
**Color**7%
**Material Quality**5%
**Advertised Vs Actual Product**5%
**Thigh Fit**3%
**Shape/Style**2%
**Thin**2%
**Length**2%
**Quality-Overall**1%
## **Common mens string bikini underwear questions**
- **Is mens string bikini underwear profitable to sell on Amazon United States?**
- The niche generates $59K/yr across 72 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is +10.9%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the mens string bikini underwear niche?**
- 24 brands and 54 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 61% of demand.
- **What do buyers complain about in mens string bikini underwear?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 2.4%.
- **When does demand for mens string bikini underwear peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the mens string bikini underwear niche?**
- Listings span $5.27–$49.62; the average listing price is $23.07 (sweet spot $15–$100). The average incumbent carries 4,384 reviews — the moat a new listing must climb.
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