---
title: "String Bikini Underwear for Women — $82K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/string-bikini-underwear-for-women"
last_updated: "2026-08-10T05:36:03.516Z"
locale: en
meta:
description: "Niche score 52/100 · $82K/yr market · 474K searches/yr · $16.47 avg price. Weak search conversion (1.1%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $82K/yr market · 474K searches/yr · $16.47 avg price. Weak search conversion (1.1%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "String Bikini Underwear for Women — $82K/yr Amazon US Niche (2026) - Flapen"
---
# **string bikini underwear for women**
**Worth a look**
Shows a fragmented shelf (top 5 take 18% of clicks), but weak search conversion (1.1%) keeps it on the watch list.
Market size 21Growth 23Conversion 13Competition 96Returns 67Price range 74Avg price 79Brand share 77Review moat 22Quality gap 67
**Competition**
**Incredible****18%**
top-5 click share — an open shelf
**Avg price**
**Great****$16.47**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Price range**
**Good****$6.58–$38.67**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.3%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-3.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****8,853.72**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$82K**
$82K/yr · 474K searches
**Conversion**
**Bad****1.1%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, string bikini underwear for women is a $82K/yr Amazon United States market (474K searches/yr). The top 5 brands hold 58% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **string bikini underwear for women market data**
- **Units sold / yr**
- **5K–6K**
- avg 0–100/product
- **Revenue / yr**
- **$82K–$99K**
- units × avg price
- **Conversion rate**
- **1.1%**
- **Avg BSR**
- **#1,290**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **75%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **158 days**
## **Competition & brand share**
Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen.
**Brands**
**40 **▲rising
**Sellers**
**79**
**Top-5 brand share**
**58%**
Top 20: 92%
**Top-5 click share**
**18%**
Top 20: 46%
**Open market**
**35%**
- Hanes18% - FINETOO14% - LEVAO11% - Sexy Basics7% - Buankoxy7% - Vanity Fair7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -3.8% search growth over the last 90 days.
15K10KPrime Day '24Spike '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/string-bikini-underwear-for-women/trend)
## **Top string bikini underwear for women search terms**
- **string bikini panties**128K/yr-17.8%0.4% conv. - **hanes bikini underwear for women**81K/yr+11.2%1.7% conv. - **string bikini underwear**51K/yr+31.7%0.3% conv. - **string bikini underwear for women**48K/yr-25.8%0.6% conv. - **cotton string bikini underwear women**33K/yr-2.9%0.6% conv. - **womens string bikini underwear**24K/yr+20.2%0.6% conv. - **womens hanes bikini underwear**17K/yr-28.7%1.5% conv. - **hanes cotton bikini underwear for women**13K/yr+16.8%0.8% conv. - **cotton string bikini underwear**13K/yr+3.5%0.5% conv. - **hanes bikini underwear**11K/yr+33.1%0.8% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/string-bikini-underwear-for-women/search-terms)
## **Top string bikini underwear for women 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%1%$8212%$2K3%$2K4%$3K101001K10K100K 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 Originals Womens Underwear Bikini Panties Stretch Cotton Underwear Basic Assorted Colors 6-Pack**Hanes**$11.47**4.6★7,548 rev](https://www.amazon.com/dp/B0BQZ91NYP) [2**Buankoxy Womens Low-Rise String Bikini Panty Stretch Briefs (7 Multi Colors)**Buankoxy**$17.74**4.5★2,062 rev](https://www.amazon.com/dp/B07BF2T9WT) [3**LEVAO Cotton Underwear for Women Sexy String Bikini Lace Cut Out Panties Stretch Ladies Cheeky Briefs 6 Pack S-XL**LEVAO**$11.93**4.2★336 rev](https://www.amazon.com/dp/B0D3HHFHZ5) [4**FINETOO 6 Pack String Underwear for Women Cotton High Cut Stretch Breathable Low Rise Hipster Cheeky Bikini Panties S-XL**FINETOO**$13.83**4.2★1,491 rev](https://www.amazon.com/dp/B0C23HPNPH) [5**FINETOO Womens Underwear Cotton High Cut String Bikini Panties Low Rise Hipster Ladies Sexy Cheeky Underwear 6 Pack**FINETOO**$12.37**4.2★2,526 rev](https://www.amazon.com/dp/B0B2NQTLSZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**oshkang Cotton G-String Thongs for Women Underwear Breathable Stretch Low Rise Panties T-back Sexy Ladies 8 Pack**oshkang**$14.81**795 rev1y ago](https://www.amazon.com/dp/B0F91J7KFY) [**XI LIU Cotton Underwear for Women Soft Stretch Womens Cotton Bikini Panties 6 Pack (US Alpha Medium Regular Regular multicolor)**XI LIU**$9.84**75 rev1y ago](https://www.amazon.com/dp/B0DXPQJWW3) [**Bonds Womens Hipster Underwear 3-Pack Classic Low-Rise Cotton Comfortable Everyday Fit**Bonds**$22.95**46 rev1y ago](https://www.amazon.com/dp/B0DX8GYK1K) [**INNERSY String Bikini Panties for Women Sexy Silky Cheeky Underwear 6-Pack(Black Beige Large)**INNERSY**$18.72**324 rev1y ago](https://www.amazon.com/dp/B0DS299MM1) [**LEVAO Cotton Underwear for Women Sexy String Bikini Lace Cut Out Panties Stretch Ladies Cheeky Briefs 6 Pack S-XL**LEVAO**$11.93**336 rev2y ago](https://www.amazon.com/dp/B0D3HHFHZ5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Vanity Fair Womens Illumination String Bikini Panty 18108 Steele Violet Large/7**Vanity Fair**$6.58**4.7★**▲ 62%**](https://www.amazon.com/dp/B004P5OX0E) [**XI LIU Cotton Underwear for Women Soft Stretch Womens Cotton Bikini Panties 6 Pack (US Alpha Medium Regular Regular multicolor)**XI LIU**$9.84**4.3★**▲ 54%**](https://www.amazon.com/dp/B0DXPQJWW3) [**oshkang Cotton G-String Thongs for Women Underwear Breathable Stretch Low Rise Panties T-back Sexy Ladies 8 Pack**oshkang**$14.81**4.3★**▲ 51%**](https://www.amazon.com/dp/B0F91J7KFY) [**Bonds Womens Hipster Underwear 3-Pack Classic Low-Rise Cotton Comfortable Everyday Fit**Bonds**$22.95**4.2★**▲ 49%**](https://www.amazon.com/dp/B0DX8GYK1K) [**FINETOO 6 Pack String Underwear for Women Cotton High Cut Stretch Breathable Low Rise Hipster Cheeky Bikini Panties S-XL**FINETOO**$13.83**4.2★**▲ 42%**](https://www.amazon.com/dp/B0C23HPNPH)
**~~View all trending →~~**
## **What buyers say about string bikini underwear for women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**27%
*“Comfortable to wear”*
**Size-Overall**20%
*“Amazing fit”*
**Quality-Overall**9%
*“Absolutely love the quality and so flattering”*
**Soft Feel**6%
*“Comfy and soft”*
**Material Quality**5%
*“Great cotton material”*
**Value For Money**5%
*“Good value for money”*
**Color**3%
*“Beautiful colors”*
**Breathability**3%
*“Comfortable and breathable”*
**Stretchability/Expandability/Elasticity**2%
*“stretchy and soft”*
**Advertised Vs Actual Product**1%
*“As advertised”*
### **What buyers complain about **
**Size-Overall**25%
*“Awkward fit”*
**Quality-Overall**8%
*“Low quality”*
**Comfort-Overall**7%
*“Material is uncomfortable”*
**Material Quality**5%
*“Cheap material”*
**Stretchability/Expandability/Elasticity**5%
*“Not much stretch”*
**Stitch/Finish/Polish**3%
*“the seam split”*
**Durability**3%
*“Falls Apart”*
**Color**3%
*“These colors are too dark”*
**Advertised Vs Actual Product**3%
*“False advertisement”*
**Shrinkage Resistance**2%
*“Shrinks”*
### **Top return reasons **
**Size-Overall**52%
**Waist Fit**11%
**Material Quality**8%
**Advertised Vs Actual Product**4%
**Thigh Fit**4%
**Shape/Style**2%
**Length**2%
**Thin**2%
**Comfort-Overall**2%
**Hip Fit**1%
## **Common questions**
- **Is string bikini underwear for women profitable to sell on Amazon United States?**
- The niche generates $82K/yr across 156 tracked products. 6 of 15 products launched in the last 360 days are still selling. 90-day search growth is -3.8%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the string bikini underwear for women niche?**
- 40 brands and 79 sellers compete. The top 5 products take 18% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in string bikini underwear for women?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Comfort-Overall. The return rate is 2.3%.
- **When does demand for string bikini underwear for women peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the string bikini underwear for women niche?**
- Listings span $6.58–$38.67; the average listing price is $16.47 (sweet spot $15–$100). The average incumbent carries 8,854 reviews — the moat a new listing must climb.
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