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Super Leakproof® Cotton High Rise

$36.00 USD

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

Absorbs about 6 super tampons

Breathable cotton

More absorbency without the bulk

Machine washable

| Lavender
| Lavender
| Lavender
| Lavender
| General

Color: Lavender Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

Super Leakproof® Cotton High Rise

Color: Lavender Limited Edition

Size:

Size:

Super Leakproof® Cotton High Rise

Color: Lavender Limited Edition

Size:

Size:

Super Leakproof® Cotton High Rise

Color: Lavender 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

Comfort-First Fit

High-rise silhouette sits above the natural waist with full coverage through the stomach, hip, and bum.

Heavy Absorbency

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

Cozy Cotton-Blend

Soft cotton with a hint of spandex feels luxurious against your skin.

Worry-Free Protection

Innovative floating gusset provides leak protection from every angle.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Lavender
| Lavender
| Lavender
| Lavender
| General

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
FRESH FIX TECHNOLOGY®

Cotton meets patented protection.

A sewn-in, floating liner soaks up about 6 super tampons’ worth of liquid—so you stay fresh, comfortable, and in control.

Soft Top Layer

Gently wicks away moisture to keep you fresh and odor-free.

4.1
Rated 4.1 out of 5 stars
Based on 46 reviews
Total 5 star reviews: 27 Total 4 star reviews: 7 Total 3 star reviews: 6 Total 2 star reviews: 3 Total 1 star reviews: 3
What our customers are saying
Customers say these cotton underwear are comfortable and breathable, with many praising the soft cotton material and good fit. The leakproof feature works well for most users, though some find the floating gusset design slides around and prefer it sewn in place. Many appreciate the lighter fabric and find them less slippery than synthetic materials. Common feedback includes concerns about the waistband being binding for some and the gusset being visible under clothing. Several customers note these run large and recommend sizing down. While most find them comfortable for daily wear, some experience chafing or riding up.
74%would recommend this product
FitRated 0.1 on a scale of minus 2 to 2
ComfortRated 4.2 on a scale of 1 to 5
EffectivenessRated 4.4 on a scale of 1 to 5
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Pant Size Purchased
Pant Size Purchased
46 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    So Comfortable

    So comfortable. They do the job as advertised. Love that you can machine wash and dry these and they still look like new.

    Lynne C.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    11 hours ago
    Cotton High Rise

    I have missed the cotton modal undies and these cotton high rise are an acceptable substitute.

    Jane F.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    2 days ago
    Newbie Review #2

    The style and fit are good but I wish there was a "high waisted" style. These just missed the mark on me. The leak proof "pad" area is very generous and I will feel well protected (versus the longer "boxer brief" that has a small area

    DONNA G.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 4 out of 5 stars
    3 days ago
    Great fit

    Great fit. Love the natural cotton. Leak proof protection a little high in back.

    Melanie D.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 3 out of 5 stars
    1 week ago
    Love cotton

    These are a better fit than the knix regular ones. Also do not sweat in the desert heat.

    Toni M.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Very comfortable!

    A comfortable cut and doesn’t “ride up.”

    Susan R.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Barbara

    They're great. I like the lighter fabric

    Barbara D.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 3 out of 5 stars
    1 week ago
    not as good as leakproof cotton high rise!

    The fabric feels very see thru and very thin compared to the Leakproof Cotton High Rise - which seems the difference is the absorbency. returning my pair!

    Robyn E. C.
    Verified Reviewer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    2 weeks ago
    Amazing

    I love these so much! I had a previous set from a different brand but this is better. It’s sleek and it’s cotton folks. I do need to change them out every 3/4 hours so I recommend getting enough.

    Jenna C.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 5 out of 5 stars
    3 weeks ago
    Really good one

    It was my first time using smt like that and I love it.

    Анна К.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 4 out of 5 stars
    3 weeks ago
    Cotton Underwear

    Breathable underwear. Not as comfortable as other fabrics but good cotton material.

    Victoria L.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise
  • Rated 2 out of 5 stars
    3 weeks ago
    Knix not adequate

    The leak proof portion of the underwear is too low and therefore not leakproof🤷‍♀️

    Rita L.
    Verified Buyer
    Reviewing
    Super Leakproof® Cotton High Rise

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