Menu

Need Help Choosing?
Take our Underwear quiz
Need Help Choosing?
Take our Bra quiz
The Polka Dot Edit
New Arrivals

Your Bag

Your cart is empty

But you're full of potential..
Rewards Members Earn 0 Points

Suggestions

Top Picks

Revolution V-Neck Bra

$65.00 USD
10% off Bra & Underwear Sets*

Color: White with Black Polka Dot Limited Edition

Super Leakproof® Dream Boxer

$48.00 USD
2 for $82, Save $14

Color: Blue Stripe Limited Edition

Leakproof UltraThin No-Show High Rise

$32.00 USD
Mix, Match & Save: 3+ for $25 each

Color: Black with White Polka Dot Limited Edition

Uplift Push Up Bra

$68.00 USD
10% off Bra & Underwear Sets*

Color: Cherry Limited Edition

Home / Shapewear / Leakproof Thigh Saver® 6”
Best Seller

Leakproof Thigh Saver® 6”

$44.00 USD

Buy 3+ Save 15%
Checkmark

3000+ 5-star reviews

Checkmark

Absorbs about 1 regular tampon

Checkmark

Eliminates chafing

Checkmark

Cooling fabric

Amber has 38

Amber has 38" hips and wears a Knix size M

Front View | Black

Front View

Amber has 38

Amber has 38" hips and wears a Knix size M

Built-in leakproof liner | General

Built-in leakproof liner

Light-as-air fabric | General

Light-as-air fabric

Smooth & seamless look | General

Smooth & seamless look

Amber has 38" hips and wears a Knix size M

Absorbency: Light

Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Essential
Drop
Drop
Drop
Drop
Drop
No Absorbency

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

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

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

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.
Rewards Members Earn 44 Points

"Goodbye chafing and goodbye uncomfortable sweating."

- TODAY

Comfort-First Fit

High-rise fit with an approx 6" inseam to help reduce chafing down to the mid-thigh.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

Underwear Optional

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

Easy to Wash

Machine washable just like regular underwear.

Zoom

Amber has 38
Front View | Black
Amber has 38
Built-in leakproof liner | General
Light-as-air fabric | General
Smooth & seamless look | 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 1 to 3 regular tampons worth of liquid.

Soft Top Layer

Soft Top Layer

The carbon cotton gusset layer gently wicks away moisture from your skin, keeping you feeling fresh and odor-free.

Our Best-Selling Underwear

Shop All Arrow Right

Super Leakproof® Dream Boxer

$48.00 USD
2 for $82, Save $14

Color: Blue Stripe Limited Edition

Super Leakproof® Dream Short

$48.00 USD
3 for $99, Save $45

Color: Black with White Polka Dot Limited Edition

Leakproof UltraThin No-Show High Rise

$32.00 USD
Mix, Match & Save: 3+ for $25 each

Color: Black with White Polka Dot Limited Edition

Leakproof UltraThin No-Show Bikini

$27.00 USD
Mix, Match & Save: 3+ for $25 each

Color: Shimmer Cherry Limited Edition

Leakproof UltraThin No-Show French Cut

$27.00 USD
Mix, Match & Save: 3+ for $25 each

Color: Black with White Polka Dot Limited Edition

SuperPlus Leakproof® No-Show High Rise

$39.00 USD
Mix, Match & Save: 3+ for $33 each

Color: Warm Sand

Super Leakproof® Dream Team 2-Pack

From 
$80.00 USD
$96.00
Save $16

The Full Cycle Kit - Bikini

From 
$127.20 USD
$159.00
Save $31
4.6
Rated 4.6 out of 5 stars
Based on 935 reviews
Total 5 star reviews: 739 Total 4 star reviews: 101 Total 3 star reviews: 37 Total 2 star reviews: 21 Total 1 star reviews: 37
91%would recommend this product
FitRated 0.2 on a scale of minus 2 to 2
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.5 on a scale of 1 to 5
Ease of UseRated 4.7 on a scale of 1 to 5
Write a Review (Opens in a new window)
935 reviews
  • Rated 5 out of 5 stars
    1 week ago
    Amazing product

    What a life saver ! Love this only wish it looked like a bathing suit

    Lynn V. d. w.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Feels like wearing nothing

    Absolute dream underwear. I wear these with any skirts or dresses to act as modesty shorts and underwear combined.

    Betsy Z.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love for under dresses!

    These are so smooth and Inlove that they are leakproof! Amazing for under dresses! I love these so much! Silky soft and comfy!

    Chelsey S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Zero Complaints

    Love these for under dresses and skirts. I sized up for a more comfy fit, but definitely could have stayed true to size.

    Deanna M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Wonderful

    Awesome underwear

    Jessica H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love them!

    Love the thigh savers! I recently turned 59 and my comment to friends was that you know you’re getting old when you buy leakproof underwear! Happy this is an option as I’m not ready for the alternative. They are so soft and silky too.

    Shari B. B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    6” thigh saver is great!

    The 6” thigh saver is very comfortable to wear and true to size. They maintain their size after washing and drying.

    Nancy J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Perfect for traveling

    I love these for so many reasons. The fit is perfect, the material feels soft and silky. It is so thin it feels almost like I am wearing nothing, plus it doesn't add bulk. My pants/jeans slide right on. I bought one to try it. I now own nine pairs.

    They are perfect for traveling because they take up so little space, are easy to hand wash and dry quickly. Plus, I have the extra security, when looking for a public restroom, that any small urine leaks are covered. I'm going to be purchasing more for my next long cruise.

    Joanne H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Leakproof thigh savet

    Not the first time buying this underwear. It fits great and makes we want to buy more. 🙂

    Madeline C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Soft fabric

    These shorts are soft and cool and comfortable to wear. I probably should have gone down a size, because they're a little slippery, but they are still a very nice short.

    Cynthia H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Thigh Savers

    These 6 inch thigh savers fit true to size and do not roll down or the leg ride up. I have a fuller waist and they stay put. Buy your correct size for your hips and they should fit well

    Linda D.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Invisible and barely there!

    I will always grab these when i'm wearing a satin or clingy skirt or dress. They really are invisible, and feel so smooth and light. I'm 5' 6" and find the 6" length perfect.

    The gusset doesn't feel leakproof, but it makes me feel more confident knowing it's there when i'm wearing delicate fabrics or a short skirt.

    Danice C.
    Verified Buyer
    Was this helpful?