---
title: "Organic Cotton Underwear — $73K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/organic-cotton-underwear"
last_updated: "2026-08-12T02:43:29.415Z"
locale: en
meta:
description: "Niche score 53/100 · $73K/yr market · 414K searches/yr · $35.37 avg price. Weak search conversion (0.5%) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $73K/yr market · 414K searches/yr · $35.37 avg price. Weak search conversion (0.5%) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Organic Cotton Underwear — $73K/yr Amazon US Niche (2026) - Flapen"
---
# **organic cotton underwear**
**Worth a look**
Shows a sweet-spot price point ($35.37 avg), but weak search conversion (0.5%) keeps it on the watch list.
Market size 18Growth 58Conversion 6Competition 93Returns 54Price range 87Avg price 95Brand share 21Review moat 46Quality gap 82
**Avg price**
**Incredible****$35.37**
avg listing price — sweet spot $15–$100
**Competition**
**Great****22%**
top-5 click share — an open shelf
**Price range**
**Great****$9.17–$64.98**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Growth**
**Good****+33.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****1,899.74**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$73K**
$73K/yr · 414K searches
**Conversion**
**Bad****0.5%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United States niche tracking, organic cotton underwear is a $73K/yr Amazon United States market (414K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Feb–Mar. Verdict: Worth a look — 53/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **organic cotton underwear market data**
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **$106K–$141K**
- units × avg price
- **Conversion rate**
- **0.5%**
- **Avg BSR**
- **#314**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **94%**
- **Out of stock**
- **26.0%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **139 days**
## **Competition & brand share**
Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.
**Brands**
**16 **▲rising
**Sellers**
**33**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**22%**
Top 20: 50%
**Open market**
**6%**
- Pact65% - Felina15% - BAMBOO COOL7% - READY TO LOVE2% - INNERSY2% - Wealurre2% - Open — no brand owns it (10 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 79 weeks — +33.1% search growth over the last 90 days.
18K13KSpike '25Prime Day '25Black Friday '25Spike '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Feb, Mar · busiest ÷ quietest = 3.6×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/organic-cotton-underwear/trend)
## **Top organic cotton underwear search terms**
- **pact underwear women**244K/yr+27.5%0.7% conv. - **pact underwear**55K/yr+20.4%0.4% conv. - **organic underwear**24K/yr+33.1%0.2% conv. - **pact organic cotton underwear women**5K/yr+191.4%0.4% conv. - **pact organic underwear**11K/yr+20.4%0.4% conv. - **ready to love cotton underwear for women**6K/yr+74.1%1.5% conv. - **pact womens underwear**9K/yr+37.2%0.5% conv. - **organic cotton bikini underwear women**9K/yr+19.5%0.3% conv. - **gots certified organic cotton underwear**5K/yr+52.1%0.0% conv. - **pact organic cotton underwear**6K/yr+109.6%0.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/organic-cotton-underwear/search-terms)
## **Top organic cotton 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%$1K4%$3K6%$4K8%$6K1101001K10K100K 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**Pact Organic Cotton Womens Classic T-Shirt Bralette Underwear**Pact**$28.58**4.3★65 rev](https://www.amazon.com/dp/B0FHL2W7PJ) [2**Felina Organic Cotton Stretch Bikini Underwear for Women - Seamless Panties for Women (6-Pack)**Felina**$36.58**4.2★712 rev](https://www.amazon.com/dp/B085LYRL1R) [3**Felina Organic Cotton Bikini Underwear for Women - Bikini Panties for Women Seamless Panties for Women (6-Pack) (Sandalwood Medium)**Felina**$37.53**4.2★712 rev](https://www.amazon.com/dp/B08547CPBF) [4**Pact Organic Cotton Womens Classic T-Shirt Bralette Underwear Black**Pact**$28.84**4.3★65 rev](https://www.amazon.com/dp/B0FJFJ3X3K) [5**Pact Womens Organic Cotton Bikini High Cut Leg 2 Pack Black**Pact**$22.17**4.4★197 rev](https://www.amazon.com/dp/B0CCSKLMHF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pact Womens Everyday Mid Rise Hipster 5-pack Core Edit MD One Size**Pact**$61.72**7 rev7mo ago](https://www.amazon.com/dp/B0G6NVD6Q5) [**Pact Womens Organic Cotton Bikini Underwear 4 Pack Black**Pact**$49.08**8 rev7mo ago](https://www.amazon.com/dp/B0G592YJPR) [**Pact Organic Cotton Womens Everyday Classic Fit Bikini Underwear 4 Pack**Pact**$48.55**8 rev7mo ago](https://www.amazon.com/dp/B0G5928JY5) [**Pact Organic Cotton Womens Lace Waist Brief Underwear 2 Pack**Pact**$28.55**15 rev7mo ago](https://www.amazon.com/dp/B0G595BDPY) [**Pact Organic Cotton Womens Everyday Classic Fit Bikini Underwear 4 Pack**Pact**$49.24**8 rev7mo ago](https://www.amazon.com/dp/B0G592X1PD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pact Organic Cotton Womens Everyday Classic Fit Bikini Underwear 4 Pack**Pact**$48.55**3.7★**▲ 21%**](https://www.amazon.com/dp/B0G5928JY5) [**Pact Organic Cotton Womens Everyday Classic Fit Bikini Underwear 4 Pack**Pact**$47.16**3.7★**▲ 21%**](https://www.amazon.com/dp/B0G594NR3N) [**Pact Organic Cotton Womens Everyday Boy Short Underwear 4 Pack**Pact**$49.00**4.0★**▲ 20%**](https://www.amazon.com/dp/B0G592ZJDK) [**Pact Organic Cotton Womens Everyday Boy Short Underwear 4 Pack**Pact**$47.46**4.0★**▲ 20%**](https://www.amazon.com/dp/B0G58ZC2QD) [**Pact Womens Organic Cotton Bikini Underwear 4 Pack Black**Pact**$49.08**3.7★**▲ 20%**](https://www.amazon.com/dp/B0G592YJPR)
**~~View all trending →~~**
## **What buyers say about organic cotton underwear**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**28%
*“Comfortable to wear”*
**Size-Overall**20%
*“Fit as described”*
**Quality-Overall**8%
*“Amazing quality”*
**Material Quality**7%
*“Great Material”*
**Soft Feel**7%
*“They are smooth”*
**Color**3%
*“Colors are nice”*
**Value For Money**3%
*“Worth it”*
**Breathability**3%
*“Comfortable and breathable”*
**Stretchability/Expandability/Elasticity**2%
*“Comfortable stretch”*
**Advertised Vs Actual Product**1%
*“Just what I needed”*
### **What buyers complain about **
**Size-Overall**23%
*“Don't fit”*
**Comfort-Overall**6%
*“Not very comfortable”*
**Quality-Overall**6%
*“Poor quality, arrived with a large hole”*
**Material Quality**6%
*“terrible material”*
**Stitch/Finish/Polish**5%
*“The seams are unraveling”*
**Stretchability/Expandability/Elasticity**4%
*“Not enough stretch to even hold them up”*
**Durability**3%
*“Falling apart”*
**Shrinkage Resistance**3%
*“shrink when washed”*
**Advertised Vs Actual Product**2%
*“Not as described”*
**Thickness**2%
*“The material is not too thick”*
### **Top return reasons **
**Size-Overall**50%
**Waist Fit**9%
**Material Quality**8%
**Thigh Fit**5%
**Advertised Vs Actual Product**4%
**Chest Fit**3%
**Length**2%
**Shape/Style**2%
**Comfort-Overall**2%
**Thin**2%
## **Common questions**
- **Is organic cotton underwear profitable to sell on Amazon United States?**
- The niche generates $73K/yr across 98 tracked products. 24 of 55 products launched in the last 360 days are still selling. 90-day search growth is +33.1%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the organic cotton underwear niche?**
- 16 brands and 33 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in organic cotton underwear?**
- Top complaints mined from reviews: Size-Overall, Comfort-Overall, Quality-Overall. The return rate is 2.9%.
- **When does demand for organic cotton underwear peak?**
- Demand peaks in Feb–Mar; the busiest month runs 3.6× the quietest.
- **What does it cost to enter the organic cotton underwear niche?**
- Listings span $9.17–$64.98; the average listing price is $35.37 (sweet spot $15–$100). The average incumbent carries 1,900 reviews — the moat a new listing must climb.
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