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LeakStrong™ Leakproof Short - Original

$75.00 USD

High-rise fit

8" inseam

Medium impact

Absorbs about 3 super tampons

Sarah has 39

Sarah has 39" hips and wears a Knix size M

| Black
Sarah has 39

Sarah has 39" hips and wears a Knix size M

| General
Sarah has 39

Sarah has 39" hips and wears a Knix size M

| General

Sarah has 39" hips and wears a Knix size M

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

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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.

Easy Returns within 30 Days

Clothing & Swim

Returns & Exchanges

Leggings, sweats, t-shirts, sleepwear, and swim items are eligible for return or exchange within 30 days of delivery with tags attached. Swim bottoms and pieces must have the original sanitary strip intact.

Still have questions? View our full policy here.

Rewards Members Earn 75 Points

Product Description

Never miss out on a workout because of your period and light bladder leaks again. Built-in Leakproof liner helps prevent leaks during all your favorite medium impact activities. Wear as backup with your Knix Leakproof Underwear or usual protection. Made with the latest FitKnix™ technology, so you can go through your day without worrying about leaks. Non-slip waistband and stretchy fabric work hard to support your comfort (so you don’t have to).

Functional Style

High-rise shorts with an 8" inseam and an extra-wide, no-slip supportive waistband that defines your natural shape. Features side pockets for sneaky storage.

Moderate Absorbency

Featuring our FitKnix™ technology and quick-dry fabric with a built-in leakproof liner that absorbs 3 super tampons' worth of liquid.

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Sarah has 39
| Black
Sarah has 39
| General
Sarah has 39
| 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®

Built-in protection that feels like nothing at all.

Leakproof liner absorbs about 2-3 super tampons worth of liquid.

Soft Top Layer

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

4.1
Rated 4.1 out of 5 stars
Based on 145 reviews
Total 5 star reviews: 88 Total 4 star reviews: 19 Total 3 star reviews: 15 Total 2 star reviews: 12 Total 1 star reviews: 11
What our customers are saying
Customers say these workout shorts and leggings offer reliable protection and comfort during activities. Many reviews mention the secure fit and high-quality material, though sizing experiences vary. The side pockets are frequently praised as convenient for phones and essentials. While most appreciate the compression and support, some note the waistband can roll down during movement. Common feedback includes that they run small, with many suggesting sizing up. Reviews are mixed on the thickness of the protective layer, with some finding it noticeable and others praising the seamless feel.
77%would recommend this product
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Rating
Ratings
145 reviews
  • Rated 5 out of 5 stars
    5 minutes ago
    Love Knix

    I'm a snow skiing instructor...a 70 year old ski instructor who had three kids...I love my Knix. I love them on the trail, on my bike, in Pilates class, playing with the grandkids. LOVE my Knix!

    Susan K.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 5 out of 5 stars
    5 months ago
    excellent for exercising in

    love these shorts. nice and tight but still allows movement.

    PATRICIA B.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 5 out of 5 stars
    9 months ago
    5 Stars

    Good quality. Haven't usded it yet, so I can not speak about the absorvancy, but it looks pretty well made, and I am happy with this purchase. My daughter is using it for sports and she liked how they felt when she trued them on. Price is high, though, even though I got them on sale, but I think it is worth it. .

    Idana
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 4 out of 5 stars
    11 months ago
    Very comfy but a little big on the waist

    I love these, there very breathable and comfy and the color is very pretty. I bought the XL that fits perfectly around my hips and legs with no circulation cutoff but the waist is a tad too loose. It would be awesome if the waist was tighter as I am always pulling them up. For reference I am 47 inch at the hips and 38 inch at the waist which are basically the measurements for an XL so maybe they run a tad too big but the hips and below fit perfectly so I am torn.

    Kraken
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 2 out of 5 stars
    1 year ago
    Too tight and thick

    Very tight and thick

    Irina G.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 5 out of 5 stars
    1 year ago
    Knix LeakproofUnderwear

    Top notch, just ordered 3 more.

    Donna S.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 2 out of 5 stars
    1 year ago
    2 Stars

    Waist band will not stay smooth. Keep folding over

    Gursharn
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 3 out of 5 stars
    1 year ago
    Product 3*, customer service 10+*

    I was disappointed. There's is very little stretch in the waist line....I couldn't get them on over my hips.

    Customer service went above and beyond, to make sure I was happy.

    JUDITH V.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 1 out of 5 stars
    1 year ago
    1 Star

    The medium would fit a child

    Louise
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 4 out of 5 stars
    1 year ago
    Nice material, tight fit

    I like them and will save for period workouts. They definitely made me feel safe that I wouldn’t have leaks! The only downside is they are a little thicker than I like. If you’re looking for tummy control, these are great!

    Catherine R.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 5 out of 5 stars
    1 year ago
    Well Made Shorts

    The shorts are comfy and long. The pocket on the side is very well placed and useful to carry your phone. The material is strong. The shorts are well made and keep your thighs from chafing.The leakproof band is useful for leaks!

    Angela S.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original
  • Rated 5 out of 5 stars
    1 year ago
    Great workout shorts

    Comfy, supportive, leakproof and a pocket too!

    Joanne W.
    Verified Buyer
    Reviewing
    LeakStrong™ Leakproof Short - Original

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