Knix Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

July 2026

Knix sales on Amazon US totaled 55,950 units in July 2026 (▼ 11.4% vs. the prior month), generating an estimated $1,245,458 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 85.8% of unit volume and 77.6% of revenue, while a typical listing is priced at $38.81. The keyword itself pulled 8,634 Amazon queries over the same period (▼ 43.7% MoM).

Zooming out to the 12-month window ending July 2026, the knix Top 50 moved 543,000 units and $11,415,894 in cumulative sales — an average of 45,250 units and $951,325 per month. Monthly throughput topped out at 62,700 units in June 2026 and dipped to 23,650 in May 2026, leaving the latest reading 18.8% higher than August 2025.

543KTotal units sold · Last 12 months
$11.4MTotal revenue · Last 12 months
8.6K▼ 43.7% MoM
Monthly search volume
$38.81Avg. price · July 2026

Knix Sales Trend (Trailing 12 Months)

Based on the top 50 ASINs by monthly sales for this keyword

Sales
Revenue

2025/08

Sales47.1K
Revenue$991.4K

2025/09

Sales46.5K
Revenue$950.5K

2025/10

Sales44.9K
Revenue$918.6K

2025/11

Sales44.7K
Revenue$900.5K

2025/12

Sales43K
Revenue$854.7K

2026/01

Sales45.1K
Revenue$925.6K

2026/02

Sales42.6K
Revenue$887.1K

2026/03

Sales42.5K
Revenue$918.7K

2026/04

Sales44.2K
Revenue$932.6K

2026/05

Sales23.6K
Revenue$508K

2026/06

Sales62.7K
Revenue$1.4M
56K

2026/07

Sales56K
Revenue$1.2M
25/0925/1126/0126/0326/0526/07
ASINSIGHT
Source: www.asinsight.com

Monthly Sales 2026/07

56K

▼ 11.4% MoM

Monthly Revenue 2026/07

$1.2M

▼ 10.7% MoM

Top 10 Market Share 2026/07

85.8%

See the Top 10 ASINs driving 85.8% of sales

Knix Market Share & Sales Concentration on Amazon US — July 2026

The most-sold knix listing on Amazon US in July 2026 is ASIN B00KXUW72G (Brand: Always Discreet), which sold 30,000 units at $19.39 apiece — equal to 53.6% of every unit tracked in this report and 5.0× the volume of the No. 2 listing.

The Top 10 ASINs account for 48,000 units and $966,410 in July 2026 — 85.8% of unit volume and 77.6% of revenue among all 50 ranked ASINs in this report.

Sales Volume of Top ASINs for 'Knix' on Amazon

July 2026
ASINSIGHT Logo
85.8% Volume Share 48K units sold
77.6% Revenue Share $966.4K estimated
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Top 5 Volume Share breakdown

B00KXUW72G 53.6%
B081VSYKL5 10.7%
B0DGFPBV3Y 7.1%
B0BNP9M6WV 3.6%
B0CMDRQ4TT 1.8%
Others 23.1%
#1
Always Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct

B00KXUW72G

Always Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct

$19.39·★ 4.4·43.1K reviews
Monthly Sales

30K

▲ 0.0%

vs. prior month

Revenue

$582.6K

latest month

Monthly Trend

12-month trend

#2
voenxe Seamless Women Underwear Thongs,No Show Ladies Workout Thong,5 Pack | Invisible Breathable Comfortable Mesh Panties,No Seam Soft Low Rise Cut Athletic Undies for Sports Gym Running Exercise Work

B081VSYKL5

voenxe Seamless Women Underwear Thongs,No Show Ladies Workout Thong,5 Pack | Invisible Breathable Comfortable Mesh Panties,No Seam Soft Low Rise Cut Athletic Undies for Sports Gym Running Exercise Work

$13.99·★ 4.6·72.8K reviews
Monthly Sales

6K

▼ 25.0%

vs. prior month

Revenue

$83.9K

latest month

Monthly Trend

12-month trend

#3
PoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support

B0DGFPBV3Y

PoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support

$16.99·★ 4.0·5.6K reviews
Monthly Sales

4K

▼ 20.0%

vs. prior month

Revenue

$69.9K

latest month

Monthly Trend

12-month trend

#4
Bambody Period Underwear for Women - Bamboo Rayon - 24 hrs Full Protection | Absorbent Period Panties - Breatheable Period Underwear for Teens - All Day Long and Overnight Protection - Heavy Flow

B0BNP9M6WV

Bambody Period Underwear for Women - Bamboo Rayon - 24 hrs Full Protection | Absorbent Period Panties - Breatheable Period Underwear for Teens - All Day Long and Overnight Protection - Heavy Flow

$36.99·★ 4.3·11.2K reviews
Monthly Sales

2K

▲ 0.0%

vs. prior month

Revenue

$77.5K

latest month

Monthly Trend

12-month trend

#5
Hanes Women's Comfort, Period. Underwear, Bikini Period Underwear, Super Leaks Period Underwear, 3-pack

B0CMDRQ4TT

Hanes Women's Comfort, Period. Underwear, Bikini Period Underwear, Super Leaks Period Underwear, 3-pack

$21.98·★ 4.1·4.3K reviews
Monthly Sales

1K

▼ 50.0%

vs. prior month

Revenue

$20.4K

latest month

Monthly Trend

12-month trend

#6
Hanes Women's Underwear Pack, 10-Pack, Full-Coverage Cotton Blend Panties, Moisture-Wicking Underwear for Women

B07YFBBPWQ

Hanes Women's Underwear Pack, 10-Pack, Full-Coverage Cotton Blend Panties, Moisture-Wicking Underwear for Women

$13.99·★ 4.1·12.6K reviews
Monthly Sales

1K

▼ 66.7%

vs. prior month

Revenue

$17.4K

latest month

Monthly Trend

12-month trend

Unlock to view all Top 50 ASIN competitors and their sales contributions

Best Knix Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)

Always Discreet is the best-performing knix brand in July 2026, moving 30,000 units across 1 ASIN for 62.5% of Top 10 volume. voenxe follows with 6,000 units (12.5%), ahead of PoseFree on 4,000 units (8.3%).

With 8 brands splitting the Top 10 and 83.3% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $13.99 to $19.39, which frames the price band a competing listing has to justify.

Brand share of Top 10 volume

62.5%
12.5%
8.3%
16.7%
Always Discreet
voenxe
PoseFree
Other brands
1

Always Discreet

1 ASIN in Top 10

62.5%

Units

30K

Revenue

$582.6K

Avg. price

$19.39

  • Always Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct

    B00KXUW72G

    $19.39·★4.4·43.1K revs

    Always Discreet Adult Diapers for Women, Incontinence Underwear, Postpartum Essentials, Disposable Briefs, Max Absorbency, Bladder Leak Protection, Small/Medium, 32ct

    Units sold30K
2

voenxe

1 ASIN in Top 10

12.5%

Units

6K

Revenue

$83.9K

Avg. price

$13.99

  • voenxe Seamless Women Underwear Thongs,No Show Ladies Workout Thong,5 Pack | Invisible Breathable Comfortable Mesh Panties,No Seam Soft Low Rise Cut Athletic Undies for Sports Gym Running Exercise Work

    B081VSYKL5

    $13.99·★4.6·72.8K revs

    voenxe Seamless Women Underwear Thongs,No Show Ladies Workout Thong,5 Pack | Invisible Breathable Comfortable Mesh Panties,No Seam Soft Low Rise Cut Athletic Undies for Sports Gym Running Exercise Work

    Units sold6K
3

PoseFree

1 ASIN in Top 10

8.3%

Units

4K

Revenue

$69.9K

Avg. price

$16.99

  • PoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support

    B0DGFPBV3Y

    $16.99·★4.0·5.6K revs

    PoseFree Jelly Bras for Women, Wireless No Underwire, Full Coverage Support

    Units sold4K

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