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Home / High Rise Underwear / Ultra Leakproof Zones+® High Rise
Joanna's Pick 🎁

Ultra Leakproof Zones+® High Rise

$33.15 USD

$39.00

15% off
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Max absorbency level

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Absorbs about 9 super tampons

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Invisible under clothes

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Extra long liner

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Machine washable

Amber has 38

Amber has 38" hips and wears a Knix size M

| Rose Water
Alex has 36.5

Alex has 36.5" hips and wears a Knix size S

Amber has 38

Amber has 38" hips and wears a Knix size M

Made with soft, stretchy fabric that’s quick dry for your comfort | General

Made with soft, stretchy fabric that’s quick dry for your comfort

Designed with extra long protective coverage in the front & back | General

Designed with extra long protective coverage in the front & back

Washes just like regular underwear | General

Washes just like regular underwear

Amber has 38" hips and wears a Knix size M

Absorbency: Ultra
Drop
Drop
Drop
Drop
Drop

Color: Rose Water

Size:

True to Size

•

Size:

Size and Fit Guide

Get FREE Express Shipping on all orders $125+

Shipping

HOLIDAY SHIPPING

Give the gift of Knix! To receive your order by Dec 24th, please order by the following dates.

All States - Urban Centers (except Hawaii, Alaska)
Standard: Sunday, December 14
Express: Tuesday, December 17

Alaska, Hawaii & Rural
Standard: Wednesday, December 10
Express: Wednesday, December 10
Express shipping is unavailable for international orders:

Africa, Central/South America, and Caribbean
Standard: Wednesday, December 10

Asia, Australia, and New Zealand 
Standard: Thursday, December 11

Europe and the Middle East 
Standard: Thursday, December 11

United Kingdom, France, Germany, Netherlands, Switzerland, and Japan 
Standard: Monday, December 15

Please note: Weather conditions and carrier issues may cause delays. Delivery dates are not guaranteed.

Processing Time
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.

Delivery Time
For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges
Orders over $100* USD = Free standard Shipping (4-8 business days)**
Expedited = $4.99 USD (3-6 business days)**

Orders under $100* USD = $7.99 USD Standard Shipping (4-8 days)**
Expedited = $9.99 USD (3-6 business days)**

*After discounts, before shipping and taxes. Processing times not included in estimates.
**Military Addresses Excluded. Standard Military Address Shipping = $10.00 USD (est. varies per location)
Easy Exchanges within 30 Days

Returns

Returns

Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
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"If you have a heavier flow, the Ultra Leakproof Zones+ High Rise is one of our favorite styles for day one of your bleed."

- StyleCaster

Comfort-First Fit

High-rise silhouette sits at your natural waist and offers medium coverage for the bum, combining comfort with a flattering fit.

Worry-Free Protection

Features an extra-long liner that runs high in the front and up the back. Patented 360 LeakSeal™ technology provides leakproof protection at every edge.

Ultra Absorbency

Absorbs 9 super tampons worth of liquid—great for heavy flow days, overnight protection, and light bladder leaks.

No-Show Style

Made from our signature buttery-soft PerformaStretch® fabric, it appears invisible under clothing.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Amber has 38
| Rose Water
Alex has 36.5
Amber has 38
Made with soft, stretchy fabric that’s quick dry for your comfort | General
Designed with extra long protective coverage in the front & back | General
Washes just like regular underwear | General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • 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

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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®

Built-in protection that feels like nothing at all.

Absorbs about 7-9 super tampons worth of liquid.

Soft Top Layer

Soft Top Layer

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

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4.1
Rated 4.1 out of 5 stars
Based on 951 reviews
Total 5 star reviews: 573 Total 4 star reviews: 131 Total 3 star reviews: 86 Total 2 star reviews: 62 Total 1 star reviews: 99
78%would recommend this product
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951 reviews
  • Rated 5 out of 5 stars
    13 hours ago
    Great protection

    The best part is that the undies feel like you are going commando!

    Mari B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    21 hours ago
    Comfortable and absorbent

    These Knix ultra leakproof are great. They live up to their description and wear well.

    Mary C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    22 hours ago
    On a blood thinner

    And no leaks. I was astounded that these lasted the whole day and really do catch the advertised 9 super tampons. I have struggled my entire life with a heavy flow made heavier by blood thinners and had days where I didn't want to leave my house because I'd have to spend half the day in a bathroom changing pads/tampons/etc. I've leaked and bled on every surface imaginable. On the heaviest days, historically, I'd leak through a super tampon and 'catch' pad in about 2 hours. I feel like these have given me my days back and the confidence to go out to any event and even sleep in my own bed without worry.

    Elena W.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    22 hours ago
    Ultra Leakproof

    Not leakproof, need to go more up front

    doris s.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    23 hours ago
    Super fit and comfort

    These are great for light bladder leaks. I wish more of your undies would come in white too.

    KATHRYN T.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    23 hours ago
    Ultra Leakproof Zones - High Rise

    Fit well, great protection. I feel the Dream Shorts are a better fit.

    Roberta F.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    Yesterday
    Not what they said they were

    I have been buying knix for years. These were highrise, which I usually buy, they are 2 inches shorter than my other highrise, on the sides and don't come to my belly button I am s dissapointed that I'm not sure they will deserve the $1000.00 I've spent so far. They change the size and the shape. I notice the regular priced ones where the correct height. Seems like they just wanted to get rid of these so they sold them off . Inferior delivery. Sorry Knix you may have lost me. Your underwear is expensive and it's going downhill.

    Ronalie B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Perfect item.

    Loved the former leak proof but these are much better. I feel very confident.

    Gayleen R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    These are wonderful

    I love the high rise of these panties. The leg cut is perfect, not too high. Just the perfect arch. The waist is tall and snug. I love that. My under parts are fully protected with a wide crotch. These are just great and the price was unbelievable. Just an excellent purchase.

    Helene G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    love these! will order again!

    Marnie
    Was this helpful?
  • Rated 4 out of 5 stars
    2 days ago
    Ultra-leakproof high rise.

    Very pleased with this product. I will buy more. But I am still having problems with leaking.

    Janice R.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    3 days ago
    Ultra leakproof, high rise briefs

    I wish I had ordered 4X. They are tight and do not breathe. A little cotton or bamboo fabric mix would help. I love the gussets going up all the way. That enables better sponge action for those of us who seem to leak differently. How ever it beats the layers I have been using- cotton underwear with two or three pads, and then a pull up!!! I am looking for pants to deal with heavy urine leaks.

    Christina M.
    Verified Buyer
    Was this helpful?