Skip to content Accessibility Statement

Your Bag

Your cart is empty

But you're full of potential..

Create an account to join Club Knix and earn points on this order

Leakproof Thigh Saver® 10”

$49.00 USD

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

Absorbs about 3 regular tampons

Prevents chafing

Cooling fabric

Invisible under clothes

Front view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit
Side view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit
Back view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit
Text on Image: These shorts are perfection. They keep you cool and chafe-free, especially in warmer weather. I wear mine daily and got my girlfriends hooked, too. - Quote from Joanna Griffiths, President & Founders of KNIX
Text on image: Smooth, seamless look and feel
Text on image: Built-in leakproof liner absorbs about 3 regular tampons' worth
Text on image: Lightweight, quick-dry and machine washable fabric

Color: Warm Sand

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

Front view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit

Leakproof Thigh Saver® 10”

Color: Warm Sand

Size:

Size:

Front view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit

Leakproof Thigh Saver® 10”

Color: Warm Sand

Size:

Size:

Front view of model wearing the Leakproof Thigh Saver® 10”, highlighting the coverage and smooth fit

Leakproof Thigh Saver® 10”

Color: Warm Sand

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.

Easy Returns within 30 Days

Thigh Savers, Shapewear & Pads

Returns & Exchanges

Your comfort matters. Thigh Savers (including Leakproof), Shapewear (including Leakproof), and Reusable Pads are eligible for return or exchange within 30 days of delivery. Feel free to remove tags and wash and wear to find your fit.

Still have questions? View our full policy here.

Rewards Members Earn 49 Points

Product Description

An extra long inseam is winning over thighs everywhere. Free yourself from worrying about thigh chafe, leaks and sweat with this all-in-one short. Perfect for under skirts and dresses, you can avoid sticky seats and flashing. For your day-to-day, at events or vacation getaways. Go commando in confidence— absorbs about 3 regular tampons’ worth.

Comfort-First Fit

High-rise fit with a approx 10" inseam (coverage to about just above the knee) to help reduce chafing down to the mid-thigh.

Underwear Optional

Perfect under skirts and dresses on light period days or sweaty occasions.

Light Absorbency

Absorbs 3 regular tampons worth of liquid—perfect for light flow days, sweat, discharge, or backup for heavy flow days.

Easy to Wash

Machine washable, just like your regular underwear.

Zoom

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

Find Your Thigh Saver®

Thigh Saver® Shorts

Stops chafe, sweat, and stick

To protect your skin and keep you cool.

Soft & barely-there

Smooth, lightweight fabric designed to feel like a second skin. 

4.4
Rated 4.4 out of 5 stars
Based on 114 reviews
Total 5 star reviews: 82
Total 4 star reviews: 10
Total 3 star reviews: 9
Total 2 star reviews: 7
Total 1 star reviews: 6
What our customers are saying
Customers say these thigh savers are extremely comfortable and feel like wearing nothing at all. They praise the soft, lightweight fabric that prevents chafing between thighs and creates a smooth appearance under dresses, skirts, and pants. Many appreciate the 10-inch length, noting it stays in place better than shorter versions and doesn't roll up. Users find them versatile for wearing under various clothing, sleeping, and lounging. The leakproof feature receives positive feedback for added protection. However, some customers report issues with the waistband sliding down or becoming loose throughout the day, requiring frequent adjustment. A few mention the waistband lacks sufficient grip or compression to stay in place during movement.
81%would recommend these products
FitRated 0.2 on a scale of minus 2 to 2
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.3 on a scale of 1 to 5
Keywords
Keywords
Rating
Ratings
Height
Height
How do you use your Leakproof?
How do you use your Leakproof?
Usual Pant Size
Usual Pant Size
114 reviews
  • Rated 5 out of 5 stars
    3 days ago
    Great under knee length skirts.

    These are super comfy and great to wear in the heat.

    MV
    Melissa V.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10” - Gift with Purchase
  • Rated 5 out of 5 stars
    3 days ago
    I gifted my gift! There was only an XS so my daughter is loving them!!

    Three generations of us wear these thigh savers! I love the fabric and the length. They are the perfect undergarment for long skirts and sundresses,

    MH
    Maureen H.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10” - Gift with Purchase
  • Rated 5 out of 5 stars
    4 days ago
    Love these

    Perfect for under dresses! The material is so slinky soft- quality is amazing!

    KK
    Kaitlyn K.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10” - Gift with Purchase
  • Rated 3 out of 5 stars
    5 days ago
    Too long

    I found that they are too long, and I couldn't exchange them for shorter thigh saver. Measure and be sure @

    GL
    Geraldine L.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10” - Gift with Purchase
  • Rated 4 out of 5 stars
    6 days ago
    comfortable

    they are very soft and comfortable under dresses and skirts when you need a little more coverage.

    KT
    karen t.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10” - Gift with Purchase
  • Rated 2 out of 5 stars
    6 days ago
    So disappointed!

    These thighs savers are such a big disappointment because they are very comfortable and fit great! But the waist has no grip and so it just rolls down your belly resulting in tugging at your belly or crotch all day long.

    MG
    Missy G.
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 5 out of 5 stars
    1 week ago
    Thighsaver

    Best on the market! Never moves keeps me comfortable

    CH
    Cheryl H.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 5 out of 5 stars
    1 week ago
    Comfortable protection!

    I bought this for wearing under dresses so that I didn't have to wear a slip. It's lightweight, comfortable and cool!

    MM
    Mary-Lynn M.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 5 out of 5 stars
    2 weeks ago
    5 Stars

    Just like their name, huge help for your thighs

    C
    Carrie
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 5 out of 5 stars
    1 month ago
    Perfect Fit

    I really like these, I ordered an XL and they fit like a glove. No riding up because of my thick thighs …which is what happens in with most of these. They feel lite but enough to keep things in place. 😂

    K Profile picture for Knix
    Knix
    1 month ago

    Hey Genique!

    This is amazing! We're so happy our Thigh Savers fit like a glove and stay in place - that's exactly what we designed them for!

    Team Knix

    GG
    Genique G.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 5 out of 5 stars
    2 months ago
    Super Comfy

    Fit well

    K Profile picture for Knix
    Knix
    2 months ago

    Hey Wendy!

    Thanks so much for taking the time to review our Leakproof Thigh Saver® 10"! We're so happy to hear you're loving the comfort and fit!

    Team Knix

    WH
    Wendy H.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10”
  • Rated 1 out of 5 stars
    2 months ago
    Does not stay up

    As a brand I adore Knix, but I keep trying their underwear in various forms and I am disappointed every time. I was hoping that these being really high waist would stay put, but unfortunately not. I am XXL, they fit perfectly, but the combination of material and my dry-ish skin means that they constantly slide down my body as I move. I bought clothing tape to even try to keep them in place for critical times I absolutely need to wear these, but again, the material doesn't stick that well, so, down they go. A little bead of whatever is used for stay-up thigh high stockings would be AMAZING and solve all my problems, but I am likely in the minority on this issue.

    VT
    Victoria T.
    Verified Buyer
    Reviewing
    Leakproof Thigh Saver® 10”

Your questions, answered.