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New & Improved

Super Leakproof® No-Show High Rise

$36.00 USD

Buy 3+ Save 15%, Buy 5+ Save 20%

Now absorbs about 6 super tampons

2" added to gusset for extra protection

Invisible under clothes

Machine washable

Sofia has 36.5” hips and wearing KNIX S

Sofia has 36.5” hips and wearing KNIX S

Sofia has 36.5” hips and wearing KNIX S

Sofia has 36.5” hips and wearing KNIX S

Color: Black with White Polka Dot Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

Super Leakproof® No-Show High Rise

Color: Black with White Polka Dot Limited Edition

Size:

Size:

Super Leakproof® No-Show High Rise

Color: Black with White Polka Dot Limited Edition

Size:

Size:

Super Leakproof® No-Show High Rise

Color: Black with White Polka Dot Limited Edition

Size:

Size:

Free Shipping on orders $100+

Shipping

Shipping

Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.

First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

New to leakproof? Your first pair is risk free for 30 days. Wear them, wash them, and see how they work for your body. Not right for you? We'll refund the item price (original shipping excluded). Prefer a different size or style? We also offer free exchanges. Just email info@knix.com and we'll take care of you.

Purchased leakproof before? Within 30 days of delivery you can exchange for another size, style, or store credit. We're unable to provide refunds on underwear. If you ordered multiple pairs, please open, wash, and wear one pair only before initiating an exchange.

Still have questions? View our full policy here.

Rewards Members Earn 36 Points

"Knix actually devised a super thin nylon-Spandex pair which is virtually invisible under clothing."

- Business Insider

Product Description

Total security from morning to night. Upgrade your cycle with the Super Leakproof No-Show High Rise, engineered for those who prioritize extra coverage and comfort. The extended gusset provides 360-degree protection against leaks, making it an ideal choice for heavy days or postpartum recovery. Crafted from moisture-wicking, anti-odor fabric, it keeps you dry and fresh without the bulk of a pad. Ditch the disposables for this sustainable, high-performance period solution that flatters your curves and stays in place.

Comfort-First Fit

Sits at the natural waistline and provides medium bum coverage.

Worry-Free Protection

Patented bonded edges help prevent side leaks.

Heavy Absorbency

Absorbs 6 Super tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

No More Panty Lines

Made from our signature buttery-soft fabric and designed to be invisible under clothes, including leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Sofia has 36.5” hips and wearing KNIX S | Black with White Polka Dot
| Black with White Polka Dot
Sofia has 36.5” hips and wearing KNIX S | Black with White Polka Dot
Sofia has 36.5” hips and wearing KNIX S | Black with White Polka Dot

How to Choose?

Essential

  • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

  • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

  • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

  • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

  • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 3-6 super tampons worth of liquid so you feel fresh and in-control.

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

4.6
Rated 4.6 out of 5 stars
Based on 6,304 reviews
Total 5 star reviews: 5k Total 4 star reviews: 680 Total 3 star reviews: 253 Total 2 star reviews: 142 Total 1 star reviews: 202
What our customers are saying
Customers say these underwear are exceptionally comfortable, soft, and feel like regular underwear without bulk. They appreciate the smooth, silky material that doesn't show lines under clothing and provides excellent absorption for bladder leaks and periods. Many note the high-rise style offers good coverage and stays in place throughout the day. Users find them durable, maintaining quality after multiple washes over years. Common praise includes the confidence and peace of mind they provide for travel and daily activities. Some mention sizing runs small and recommend going up a size. A few note concerns about recent design changes making them bulkier, and some find insufficient elastic around leg openings. Reviews consistently highlight their effectiveness for various needs from light leaks to heavy flow days.
92%would recommend these products
FitRated 0.1 on a scale of minus 2 to 2
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
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6,304 reviews
  • Rated 5 out of 5 stars
    39 minutes ago
    The best

    Their leakproof period products are amazing. By far the most comfortable and effective of the ones I’ve tried. I’ve purchased several pairs. I had an issue with a discount code during checkout last time but customer service reached out to me right away.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    4 minutes ago

    Hey Korin!

    We're so thrilled you're loving the Super Leakproof No-Show High Rise! Thanks for being such an amazing customer, and we're glad our team could help you out!

    Team Knix

    Korin K.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    2 hours ago
    Accurate description.

    Gives me confidence when I go out.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    1 hour ago

    Hey Valerie!

    This is so wonderful to hear! We're thrilled our Super Leakproof No-Show High Rise gives you that confidence boost. That's exactly what we love hearing!

    Team Knix

    Valerie M.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    19 hours ago
    5 Stars

    Amazing fit!!

    Kelly
    Reviewing
    Super Leakproof® No-Show High Rise 3-Pack
  • Rated 5 out of 5 stars
    3 days ago
    Absolutely love

    They are great very comfortable

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    3 days ago

    Hey Barb!

    Thanks so much for the 5-star review! We're thrilled to hear you're loving the comfort of your Super Leakproof No-Show High Rise!

    Team Knix

    Barb K.
    Verified Buyer
    Reviewing
    POS - Super Leakproof® No-Show High Rise - Last Call
  • Rated 5 out of 5 stars
    3 days ago
    great fit!

    When you wear these panties, you really do feel secure in the fact that , if you leak, no one else will notice. Very good quality and comfortable to wear.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    3 days ago

    Hey Carol!

    Thanks so much for taking the time to review our Super Leakproof No-Show High Rise 3-Pack! We're so happy to hear you're feeling secure and comfortable in them!

    Team Knix

    carol F.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise 3-Pack
  • Rated 4 out of 5 stars
    5 days ago
    leakproof

    My mother is so happy with your product.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    5 days ago

    Hey Susan!

    This is so wonderful to hear! We're thrilled your mother is loving her Super Leakproof No-Show High Rise. Thanks for sharing the love!

    Team Knix

    Susan J.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise 3-Pack
  • Rated 5 out of 5 stars
    6 days ago
    5 Stars

    Outstanding high quality product. True to size meeting online description. Very high leg and tummy area.

    Cheryl
    Reviewing
    Super Leakproof® No-Show High Rise 3-Pack
  • Rated 5 out of 5 stars
    1 week ago
    No show high

    I cannot say enough. So fnnn comfortable..

    My favorite!!

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    1 week ago

    Hey Leesha!

    This is amazing! We're so happy to hear our Super Leakproof No-Show High Rise is your favorite. Comfort is everything!

    Team Knix

    Leesha D.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise 3-Pack
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    I’ve tried many “no show protectors” and these are the most comfortable and invisible—the best! Tip: When traveling, I attach a pad liner for that first long leg of a trip. After easily disposing liner, Im set for the rest of the journey. Strategy works for me. Light yet durable, I‘ve owned Knix for years. They’re stll like new!

    Caron
    Reviewing
    Super Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Phenomenal

    I bought these on a whim and am so pleased ok coming back for more. I didn’t think I was a period underwear person but it turns out I definitely am.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    1 week ago

    Hey Deborah!

    This is amazing! We love a good surprise conversion story! So happy you took the leap and found your new go-to. Welcome to Team Period Underwear!

    Team Knix

    Deborah M.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise - Original - Last Call
  • Rated 5 out of 5 stars
    1 week ago
    Excellent Underwear!

    The Knix underwear are very comfortable and do exactly what they promise to do. Very pleased. Highly recommend.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    1 week ago

    Hey Janet!

    Thanks so much for the amazing review! We're thrilled to hear our Super Leakproof No-Show High Rise is delivering on comfort and performance. Your recommendation means everything!

    Team Knix

    Janet M.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show High Rise
  • Rated 1 out of 5 stars
    1 week ago
    1 Star

    I thought I was getting 3 pants for the $30.00. It was just 1 pair. Too expensive and I don't think they are very comfortable.

    Terry
    Reviewing
    Super Leakproof® No-Show High Rise