---
title: "Knix Leakproof Underwear for Women — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/knix-leakproof-underwear-for-women"
last_updated: "2026-08-12T17:05:58.424Z"
locale: en
meta:
description: "Amazon product research for knix leakproof underwear for women: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for knix leakproof underwear for women: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Knix Leakproof Underwear for Women — Amazon US Product Research"
---
# **Knix Leakproof Underwear for Women**
**Worth a look**
Shows beatable incumbent ratings (3.8★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 8Growth 83Conversion 9Competition 80Returns 41Price range 86Avg price 95Brand share 68Review moat 63Quality gap 97
**Quality gap**
**Incredible****3.8★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Incredible****$30.28**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.72–$58.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Great****+79.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Great****35%**
top-5 click share — an open shelf
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****971.37**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$34K**
$34K/yr · 158K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
## **Is knix leakproof underwear for women profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, knix leakproof underwear for women is a $34K/yr Amazon United States market (158K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Jan–Jul. Verdict: Worth a look — 59/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **knix leakproof underwear for women market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$38K–$45K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#487**
- **Page quality**
- **0%**
- **Prime**
- **72%**
- **Sponsored**
- **80%**
- **Out of stock**
- **7.9%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **148 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.
**Brands**
**26 **▲rising
**Sellers**
**44**
**Top-5 brand share**
**64%**
Top 20: 96%
**Top-5 click share**
**35%**
Top 20: 71%
**Open market**
**30%**
- Evella21% - Generic13% - YFEESEN12% - PGFEK11% - ZJHTK7% - Hanes6%
## **knix leakproof underwear for women demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +79.0% search growth over the last 90 days.
40K30KHoliday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Jul · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/knix-leakproof-underwear-for-women/trend)
## **Top knix leakproof underwear for women search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **lbmlbm leak proof underwear for women**14K/yr>1,000%0.3% conv. - **evella leak proof underwear for women**48K/yr+29.7%2.6% conv. - **lbmlbm leakproof underwear**10K/yr+85.8%0.2% conv. - **waterproof underwear**14K/yr+6.1%0.1% conv. - **evella leak proof panties heavy duty incontinence**10K/yr+73.0%2.6% conv. - **leak proof underwear ladies**4K/yr>1,000%0.0% conv. - **sofilace leakproof panties for women**4K/yr+716.4%0.2% conv. - **dry guard leak proof panties for women over 60**3K/yr+281.6%0.2% conv. - **haven leakproof underwear**2K/yr>1,000%0.0% conv. - **sorae womens leak proof underwear**2K/yr+0.0%0.1% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/knix-leakproof-underwear-for-women/search-terms)
## **Top knix leakproof underwear for women 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%$1K6%$2K9%$3K12%$4K1101001K10K 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**PGFEK Lbmlbm Leakproof Underwear for Women High-Waisted Soft Absorbent Washable and Reusable Briefs 4 Pack(Blend M)**PGFEK**$22.73**3.2★7 rev](https://www.amazon.com/dp/B0H1GCNTFK) [2**YFEESEN Lbmlbm Leakproof Underwear High-Waisted Leak-Proof Panties Washable & Reusable Underwear Soft Absorbent (US Alpha X-Large Regular Regular 8pcs)**YFEESEN**$36.03**3.1★16 rev](https://www.amazon.com/dp/B0GY4VT8KD) [3**Evella Incontinence Underwear for Women - Washable Leak Proof Underwear for Women 55+ - Reusable Protection Panties for Bladder Leaks - 3-Pack (Black Beige Grey) - Updated Design Large**Evella**$36.28**3.7★49 rev](https://www.amazon.com/dp/B0GS89FMMW) [4**Evella Incontinence Underwear for Women - Washable Leak Proof Underwear for Women 55+ - Reusable Protection Panties for Bladder Leaks - 3-Pack (Black Beige Grey) - Updated Design X-Large**Evella**$36.77**3.7★49 rev](https://www.amazon.com/dp/B0GS8859PP) [5**ZJHTK 6Pcs Cotton Incontinence Underwear for Women Middle Waisted Panties for Women over 60 Reusable Protective Briefs XXL Multicolor**ZJHTK**$26.40**3.8★1,295 rev](https://www.amazon.com/dp/B0BFB874WD)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PGFEK Lbmlbm Leakproof Underwear for Women High-Waisted Soft Absorbent Washable and Reusable Briefs 4 Pack(Blend M)**PGFEK**$22.73**7 rev2mo ago](https://www.amazon.com/dp/B0H1GCNTFK) [**Evella Womens Leakproof Incontinence Underwear Washable Reusable Bladder Control Panties 3-Pack Multicolor (Black Beige Grey) Large**Evella**$49.51**40 rev4mo ago](https://www.amazon.com/dp/B0GP9YL886) [**Evella Womens Leakproof Incontinence Underwear Washable Reusable Bladder Control Panties 3-Pack Multicolor (Black Beige Grey) 2X-Large**Evella**$49.67**40 rev4mo ago](https://www.amazon.com/dp/B0GP91ZWW7) [**Evella Incontinence Underwear for Women - Washable Leak Proof Underwear for Women 55+ - Reusable Protection Panties for Bladder Leaks - 3-Pack (Black Beige Grey) - Updated Design Large**Evella**$36.28**49 rev5mo ago](https://www.amazon.com/dp/B0GS89FMMW) [**Evella Incontinence Underwear for Women - Washable Leak Proof Underwear for Women 55+ - Reusable Protection Panties for Bladder Leaks - 3-Pack (Black Beige Grey) - Updated Design X-Large**Evella**$36.77**49 rev5mo ago](https://www.amazon.com/dp/B0GS8859PP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**YFEESEN Lbmlbm Leakproof Underwear High-Waisted Leak-Proof Panties Washable & Reusable Underwear Soft Absorbent (US Alpha XX-Large Regular Regular 4pcs-B)**YFEESEN**$23.26**3.1★**▲ 22%**](https://www.amazon.com/dp/B0GY4MRH4P) [**YFEESEN Lbmlbm Leakproof Underwear High-Waisted Leak-Proof Panties Washable & Reusable Underwear Soft Absorbent (US Alpha X-Large Regular Regular 8pcs)**YFEESEN**$36.03**3.1★**▲ 21%**](https://www.amazon.com/dp/B0GY4VT8KD) [**YFEESEN Lbmlbm Leakproof Underwear High-Waisted Leak-Proof Panties Washable & Reusable Underwear Soft Absorbent (US Alpha Small Regular Regular 4pcs-A)**YFEESEN**$23.69**3.1★**▲ 21%**](https://www.amazon.com/dp/B0GY4LJLJ3) [**PGFEK Lbmlbm Leakproof Underwear for Women High-Waisted Soft Absorbent Washable and Reusable Briefs 4 Pack(Blend M)**PGFEK**$22.73**3.2★**▲ 21%**](https://www.amazon.com/dp/B0H1GCNTFK) [**Evella Incontinence Underwear for Women - Washable Leak Proof Underwear for Women 55+ - Reusable Protection Panties for Bladder Leaks - 3-Pack (Black Beige Grey) - Updated Design Large**Evella**$36.28**3.7★**▲ 21%**](https://www.amazon.com/dp/B0GS89FMMW)
**~~View all trending →~~**
## **What reviews say buyers love and hate about knix leakproof underwear for women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**26%
*“Comfortable and light weight”*
**Size-Overall**18%
*“Excellent fit”*
**Quality-Overall**7%
*“Amazing quality”*
**Soft Feel**7%
*“They are smooth”*
**Material Quality**3%
*“Great Material”*
**Value For Money**3%
*“great value”*
**Advertised Vs Actual Product**3%
*“Works as advertised”*
**Stretchability/Expandability/Elasticity**2%
*“Comfortable stretch”*
**Color**2%
*“The colors were beautiful”*
**Absorbency**2%
*“Great absorbency”*
### **What buyers complain about **
**Size-Overall**22%
*“Does not fit”*
**Comfort-Overall**6%
*“Feels like you are wearing plastic which is uncomfortable”*
**Quality-Overall**4%
*“CHEAPLY MADE”*
**Absorbency**4%
*“Not absorbent”*
**Durability**4%
*“Fell apart”*
**Functionality-Overall**4%
*“DID NOT WORK”*
**Stitch/Finish/Polish**3%
*“the seam fell apart”*
**Value For Money**3%
*“Waste of money”*
**Thickness**3%
*“which is a little thick”*
**Stretchability/Expandability/Elasticity**2%
*“Not stretchy”*
### **Top return reasons **
**Size-Overall**54%
**Waist Fit**7%
**Material Quality**7%
**Thigh Fit**4%
**Advertised Vs Actual Product**4%
**Comfort-Overall**2%
**Thin**2%
**Absorbency**2%
**Waist High**2%
**Length**1%
## **Common knix leakproof underwear for women questions**
- **Is knix leakproof underwear for women profitable to sell on Amazon United States?**
- The niche generates $34K/yr across 54 tracked products. 2 of 28 products launched in the last 360 days are still selling. 90-day search growth is +79.0%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the knix leakproof underwear for women niche?**
- 26 brands and 44 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 64% of demand.
- **What do buyers complain about in knix leakproof underwear for women?**
- Top complaints mined from reviews: Size-Overall, Comfort-Overall, Quality-Overall. The return rate is 3.7%.
- **When does demand for knix leakproof underwear for women peak?**
- Demand peaks in Jan–Jul; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the knix leakproof underwear for women niche?**
- Listings span $9.72–$58.14; the average listing price is $30.28 (sweet spot $15–$100). The average incumbent carries 971 reviews — the moat a new listing must climb.
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