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.

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.

Quality gap

Incredible3.8★

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

Great35%

top-5 click share — an open shelf

Brand share

Good64%

top-5 brand share — brands hold most of the demand

Review moat

Good971.37

avg incumbent reviews — the moat a new listing must climb

Returns

Okay3.7%

return rate — above 5% kills the launch gate

Conversion

Bad0.7%

search→purchase rate — share of searches ending in a sale

Market size

Bad$34K

$34K/yr · 158K searches

Signals Low Review Barrier Quality Gap

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

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

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.

Peak months: Jan, Jul · busiest ÷ quietest = 2.5×

Open 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 women14K/yr >1,000%0.3% conv.
evella leak proof underwear for women48K/yr +29.7%2.6% conv.
lbmlbm leakproof underwear10K/yr +85.8%0.2% conv.
waterproof underwear14K/yr +6.1%0.1% conv.
evella leak proof panties heavy duty incontinence10K/yr +73.0%2.6% conv.
leak proof underwear ladies4K/yr >1,000%0.0% conv.
sofilace leakproof panties for women4K/yr +716.4%0.2% conv.
dry guard leak proof panties for women over 603K/yr +281.6%0.2% conv.
haven leakproof underwear2K/yr >1,000%0.0% conv.
sorae womens leak proof underwear2K/yr +0.0%0.1% conv.

All 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.

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

PGFEK Lbmlbm Leakproof Underwear for Women High-Waisted Soft Absorbent Washable and Reusable Briefs 4 Pack(Blend M)

PGFEK$22.733.2★7 rev

YFEESEN Lbmlbm Leakproof Underwear High-Waisted Leak-Proof Panties Washable & Reusable Underwear Soft Absorbent (US Alpha X-Large Regular Regular 8pcs)

YFEESEN$36.033.1★16 rev

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$36.283.7★49 rev

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$36.773.7★49 rev

ZJHTK 6Pcs Cotton Incontinence Underwear for Women Middle Waisted Panties for Women over 60 Reusable Protective Briefs XXL Multicolor

ZJHTK$26.403.8★1,295 rev

Newest

by launch date

PGFEK Lbmlbm Leakproof Underwear for Women High-Waisted Soft Absorbent Washable and Reusable Briefs 4 Pack(Blend M)

PGFEK$22.737 rev

2mo ago

Evella Womens Leakproof Incontinence Underwear Washable Reusable Bladder Control Panties 3-Pack Multicolor (Black Beige Grey) Large

Evella$49.5140 rev

4mo ago

Evella Womens Leakproof Incontinence Underwear Washable Reusable Bladder Control Panties 3-Pack Multicolor (Black Beige Grey) 2X-Large

Evella$49.6740 rev

4mo ago

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$36.2849 rev

5mo ago

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$36.7749 rev

5mo ago

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-Overall26%

“Comfortable and light weight”

Size-Overall18%

“Excellent fit”

Quality-Overall7%

“Amazing quality”

Soft Feel7%

“They are smooth”

Material Quality3%

“Great Material”

Value For Money3%

“great value”

Advertised Vs Actual Product3%

“Works as advertised”

Stretchability/Expandability/Elasticity2%

“Comfortable stretch”

Color2%

“The colors were beautiful”

Absorbency2%

“Great absorbency”

What buyers complain about

Size-Overall22%

“Does not fit”

Comfort-Overall6%

“Feels like you are wearing plastic which is uncomfortable”

Quality-Overall4%

“CHEAPLY MADE”

Absorbency4%

“Not absorbent”

Durability4%

“Fell apart”

Functionality-Overall4%

“DID NOT WORK”

Stitch/Finish/Polish3%

“the seam fell apart”

Value For Money3%

“Waste of money”

Thickness3%

“which is a little thick”

Stretchability/Expandability/Elasticity2%

“Not stretchy”

Top return reasons

Size-Overall54%

Waist Fit7%

Material Quality7%

Thigh Fit4%

Advertised Vs Actual Product4%

Comfort-Overall2%

Thin2%