Top 10 Best knix period underwear in 2026

Last Updated - 6/29/2026

🏆Best Choice

Hanes

Hanes Women's Comfort, Period. Briefs, Super Leak Post-Partum & Period Underwear, 3-Pack

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Hanes is the #1 brand of women’s period panties. Source: Circana, Retail Tracking Service, U.S. brand unit sales, 12 months ending August 2024.
•GET REIMBURSED, FSA/HSA/HRA ELIGIBLE - Period underwear is covered by Flexible Spending Arrangement (FSA), Health Savings Account (HSA), or Health Reimbursement Arrangement (HRA) accounts.
•BULK-FREE SUPER PROTECTION - An absorbent, multi-layer leak protection liner discreetly provides super leaks protection for postpartum bleeding, periods, and unexpected leakage in a streamlined fit under clothing.
•WASHABLE AND REUSABLE - After use, rinse with cold water until water runs clear. Machine wash cold with like colors. Do not soak, bleach, or use fabric softener. Turn inside out to dry. Tumble dry low. Do not iron.
•GREAT FOR SLEEP - Nod off with no worries, thanks to the superb nighttime protection afforded by this women's brief underwear.
•STAIN & ODOR RESISTANT - Hanes period protection underwear features a stain block liner to prevent staining. Odor guard neutralizes smells so you can feel more confident.

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Neione

Neione Period Underwear Menstrual Panties Comfortable Modal Bikini Cheeky Hi-Cut Briefs for Women Postpartum Undies 5 Pack Galaxy M

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•MODERATE PERIOD UNDERWEAR, HOLDS THREE TAMPONS: Absorbs up to 15-20 ml, these women's period bikini underwear are ideal for light to moderate menstrual flow and spotting
•RELIABLE BACK-UP: Use together with other feminine care products during heavy flow as a backup. The cotton-based inner layer provides a non-slip surface to keep menstrual pads securely in place
•NO MESS NO STAIN: Our period panties feature a leak-proof design on both front and back, making menstruation more manageable, preventing staining on pants or mattress during sleep or gym workouts
•CUTE AND COMFY: Made of silky soft, lightweight modal fabric, this high-cut cheeky bikini undies fits like regular women underwear with added protection. Available in many cute and colorful prints loved by teen girls
•EASY CARE: Machine washable and suitable for tumble drying, Neione Period Panties are made to withstand repeated washes and spins, offering a durable and reusable leak-free solution for women and teens

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$34.99

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KNIX

KNIX Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable - Black, Medium (1 Pack)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Heavy Absorbency: absorbs the same as 1.5 regular pads or 3 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has a 9-inch gusset that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your period panties again
•Comfortable Fit: These period panties are classic mid-rise silhouette, provide medium hip and bum coverage; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$29.00

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KNIX

KNIX Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable - Black, Small (1 Pack)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Heavy Absorbency: absorbs the same as 1.5 regular pads or 3 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has a 9-inch gusset that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your period panties again
•Comfortable Fit: These period panties are classic mid-rise silhouette, provide medium hip and bum coverage; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$29.00

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KNIX

KNIX Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable - Black, X-Small (1 Pack)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Heavy Absorbency: absorbs the same as 1.5 regular pads or 3 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has a 9-inch gusset that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your period panties again
•Comfortable Fit: These period panties are classic mid-rise silhouette, provide medium hip and bum coverage; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$29.00

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KNIX

KNIX Super Leakproof No-Show Boyshort - Period Underwear for Women - Machine Washable, Reusable - Black, Medium (1 Pack)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Heavy Absorbency: absorbs the same as about 1.5 regular pads or 3.5 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has an 9" built-in liner that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your period panties again
•Comfortable Fit: These period panties have a mid-rise silhouette and provide extra coverage through the hip & bum; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$29.00

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KNIX

KNIX Super Leakproof High Rise Underwear - Period Underwear for Women - Machine Washable, Reusable - Black, Large (3 Pack)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Included Items: 3 Super Leakproof High Rise Underwear and a Wash bag
•Heavy Absorbency: absorbs the same as about 2 regular pads or 4 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has an 9" built-in liner that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your high waist period panties again
•Comfortable Fit: These period panties sit at the natural waist and provide medium coverage through the bum; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit

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$75.00

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KNIX

KNIX Super Leakproof Dream Short- Period Underwear for Women, Machine Washable, Reusable - Black, Medium (1 Pack)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Heavy Absorbency: these sleep bottoms absorb the same as about 2.5 regular pads or 5.5 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix Dream Short has an extra long 10-14" gusset that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your period panties again
•Comfortable Fit: These period panties hug your body & stay in place overnight; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$48.00

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KNIX

KNIX Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable - Black, Medium (3 Pack)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Super Leakproof Bikini Panties: Knix period underwear features leakproof technology that absorbs the equivalent of 8 tsp worth of liquid during menstruation
•Menstrual Underwear with Extended Gusset: This period underwear has a 9" gusset that stops blood, pee, or sweat from leaking through for comfortable coverage
•Reusable Menstrual Pad Alternative: Ditch disposable menstruation products for good; just toss your period underwear in the wash and wear them again and again
•Bikini Underwear with Comfortable Fit: The postpartum underwear and period panties have a classic mid-rise fit; fabric is designed to relax with wash and wear for the perfect fit
•About Knix: We are dedicated to designing underwear and clothes that make you feel comfortable in your own skin

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$75.00

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KNIX

KNIX Super Leakproof High Rise Underwear - Period Underwear for Women - Machine Washable, Reusable - Dune, Large (1 Pack)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Heavy Absorbency: absorbs the same as about 2 regular pads or 4 super tampons, ideal period panties for heavy flow or used as incontinence underwear
•Quick Dry, Extended Gusset: Knix underwear has an 9" built-in liner that stops blood, pee, or sweat from leaking through
•Sustainable & Machine Washable Period Panty: Ditch disposable tampons and pads for good; simply toss your period underwear in the wash after use and wear your high waist period panties again
•Comfortable Fit: These period panties sit at the natural waist and provide medium coverage through the bum; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit
•About Knix: with 10+ years of experience, Knix's products are lab-tested and wear-tested. Knix was launched to to transform an underwear market that had too much frill and not enough function.

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$36.00

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