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Shortie Thigh Saver® 4”

$39.00 USD

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

Eliminates thigh chafing

Cooling fabric

Invisible under clothes

Front view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Sarah is wearing KNIX M

Shortie Thigh Saver® 4” shown front-facing against a light gray background
Back view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Sarah is wearing KNIX M

Back view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Sarah is wearing KNIX M

Full-body view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Sarah is wearing KNIX M

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: Light-as-air fabric
Text on image: Cotton-blend liner (zero absorbency)
Text on image: Smooth & seamless look

Sarah is wearing KNIX M

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

Front view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Shortie Thigh Saver® 4”

Color: Black

Size:

Size:

Front view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Shortie Thigh Saver® 4”

Color: Black

Size:

Size:

Front view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit

Shortie Thigh Saver® 4”

Color: Black

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 39 Points

Product Description

The shorter version of our best-selling chafe-reducing short. Get yours before it gets hot, and protect yourself from chafing, sweat, and having to sit on anything gross when you're in a dress.

Comfort-First Fit

High-rise fit to help reduce chafing down to the mid-thigh.
3" inseam in S-M, 4" in L-XXXL

Underwear Optional

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

Easy to Wash

Machine washable, just like your regular underwear.

Zoom

Sarah is wearing KNIX M | Front view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit | Black
Sarah is wearing KNIX M | Back view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit | Black
Sarah is wearing KNIX M | Back view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit | Black
Sarah is wearing KNIX M | Full-body view of model wearing the Shortie Thigh Saver® 4”, highlighting the coverage and smooth fit | Black

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. 

4.3
Rated 4.3 out of 5 stars
Based on 1,285 reviews
Total 5 star reviews: 849
Total 4 star reviews: 191
Total 3 star reviews: 104
Total 2 star reviews: 78
Total 1 star reviews: 63
What our customers are saying
Customers say these shorts are extremely soft, comfortable, and perfect for wearing under dresses and skirts. Many appreciate their breathable, lightweight fabric and seamless fit. Users find them ideal for preventing thigh chafing during summer activities and walking. However, reviews are mixed on fit consistency - while some praise how they stay in place without rolling, others report issues with the shorts rolling up on thighs or down at the waist. Several customers mention the fabric is quite thin and see-through. Many note they're true to size, though some suggest sizing considerations for different body types.
84%would recommend these products
ComfortRated 4.4 on a scale of 1 to 5
CoverageRated 4.3 on a scale of 1 to 5
SizingRated -0.0 on a scale of minus 2 to 2
EffectivenessRated 4.3 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
Keywords
Keywords
Rating
Ratings
Usual Pant Size
Usual Pant Size
Height
Height
1,285 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    Black 4” thigh saver

    Love these!! Very comfortable. Washes up nicely.

    CS
    Chrissy S.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 1 out of 5 stars
    4 days ago
    Would not buy again or recommend

    These did not work as intended. They do not stay on the thighs. They immediately roll up into the inguinal area, creating a thick roll of material, and at the same time leaving the thighs uncovered. The lateral side stayed down for a few minutes longer, but after an hour or so of walking that side was also rolled up. They are also extremely high waisted, so the wearer needs to want their underwear up around their armpits. I do not usually write reviews, but I was very disappointed in this product. It is not up to the company's usual standards in my opinion.

    K
    Kat
    Verified Reviewer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    1 week ago
    Shortie thigh saver

    Love them. Wearing them under dresses and loose pants in 40 C weather this summer while travelling and I feel very comfortable

    K Profile picture for Knix
    Knix
    1 week ago

    Hey Nancy!

    This is amazing! We're so happy our Thigh Savers kept you comfortable during your travels in that heat. Thanks for taking us along this summer!

    Team Knix

    NL
    Nancy L.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    2 weeks ago
    Super light and comfy

    I love these thigh savers! They are super light, so no worries of extra warmth due to the fabric. Very comfy too. Highly recommend!

    K Profile picture for Knix
    Knix
    2 weeks ago

    Hey Tamar!

    Thanks so much for the amazing review! We're thrilled to hear you're loving the lightweight comfort of our Shortie Thigh Savers. This made our day!

    Team Knix

    TN
    Tamar N.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 4 out of 5 stars
    3 weeks ago
    Truly thigh savers

    My only grip is I'm normally a medium or large in Knox bottoms but if I want to wear these under a lower rise skirt I have to size up to a XL to be able to comfortably roll the thigh savers waistband down. Other than that they are super comfy and the thighs don't roll up in L or XL on me!

    K Profile picture for Knix
    Knix
    3 weeks ago

    Hey Anna!

    Thanks for the helpful sizing tip! We're so happy our Thigh Savers are keeping you comfortable and staying put. This feedback is super valuable!

    Team Knix

    AV
    Anna V.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    1 month ago
    Comfortable

    Light & airy! Fit great.

    Ordered a Medium. For reference, 128lbs, 27” waist & 39” hips.

    K Profile picture for Knix
    Knix
    1 month ago

    Hey Amanda!

    Thanks so much for taking the time to review our Shortie Thigh Saver® 4"! We're so happy you're loving the light and airy feel. Thanks for the helpful sizing details too!

    Team Knix

    AM
    Amanda M.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    1 month ago
    Appropriate name

    Very nice to wear with pants. No pantie lines.

    ML
    Mary L. K.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    2 months ago
    Love these!

    I had to size up from my regular size (which was medium), as the large actually has a 4” inseam (small and medium don’t). Size medium inseam rode up on me. The large are perfect and don’t ride up.

    MJ
    Melissa J.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    2 months ago
    perfect for shorts or summer dresses

    perfect for shorts or summer dresses

    BK
    Belinda K.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    2 months ago
    Great fit

    Love these under dresses and skirts

    BG
    Bonnie G.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 5 out of 5 stars
    2 months ago
    Shortie Thigh Saver 4"

    2 pair, light colour, sand I think. Look real hot on my lady. Perfect fit

    DB
    David B.
    Verified Buyer
    Reviewing
    Shortie Thigh Saver® 4”
  • Rated 4 out of 5 stars
    2 months ago
    Newbie Review

    The style and fit are good. Material is okay but the "leak proof pad" area is kinda small. Not as generous as the brief

    DG
    DONNA G.
    Verified Buyer
    Reviewing
    POS - Shortie Thigh Saver® 4” - Last Call

Your questions, answered.