Black Lace Slip Shorts for Under Dresses | Undersummers

Lace Shortlette Anti Chafing Slipshort 9" Length (Black)-BEST SELLER!

Size Guide

-The Original LACE Shortlette®️-

Undersummers LACE Shortlettes®️ Anti-Chafing Slipshorts

It's the details in these black lace slip shorts for under dresses that make the Undersummers difference:

  • Seam-Free Inner Thigh offers superior thigh protection
  • Stay-Put Leg keeps your legs protected during activity
  • 9" Inseam
  • Soft wide lace panel & front seam flatters your curves
  • Soft, silky fabric lets legs and clothes glide
  • Lightweight, cool, breathable, moisture -wicking fabric
  • Cotton liner makes this a single layer solution
  • Stretchy, comfy fit.  Absolutely Not Shapewear.  Non-Compression fit.
  • 96% Polyester/ 4% Spandex, exclusive of trims, cotton gusset
  • Machine wash cold, line dry
  • Assembled in the USA
  • Click here to see the garment dimensions 

Undersummers Lace Shortlettes®️ are anti-chafing slip shorts to wear under skirts and dresses.  We pride ourselves on using premium soft silky fabrics and lots & lots of lace.  Our wide lace waistband extends around the entire waist for a beautiful and luxurious look.  You deserve the best! Treat yourself to our most favorite and loved Shortlette®️.

Perfect to wear to bed, under skirts and dresses, and an excellent accent to  lengthen shorts.  Our Shortlettes®️ stay put while walking and keep legs from being sticky in the summer heat (or occasional hot flash at night).   Sized small to 4X.

Type: Lace Shorlette

Customer Reviews
4.7 Based on 575 Reviews
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Tyeshia M.
Japan Japan

Best buy ever!!

I'm so thankful for this product, it truly is a lifesaver! They are so comfortable and the fit is spot on!!

Australia Australia


Love these shorts.

Cheryl B.
United States United States

I Love my Undersummers

These lace shorts are so comfortable. I wear them every day under my summer dresses. I helps my dress to lay smoother and when I sit, I don’t mind anyone seeing them because they look like shorts. Very Comfortable ! Well worth the money!

Jacqueline L.
United States United States

Sliding down

Simply walking around my bedroom with these on, they immediately started falling down in the back, sliding down my rear end. As these are not returnable I got out my sewing machine to do some tailoring. By taking 5 "darts" in the back half of the waist, I took a little over 5" out of the waist and now they fit quite well. Worn under a heavy-ish denim skirt or with an untucked t-shirt/top to cover the added bulk in the waist, they are usable.

Sharilyn K.
United States United States

I bought pretty much every kind they had

I have a rainbow of colors plus tan, black and white. Now I can wear all of my cute dresses and not worry about sweaty or sticking thighs in the hot weather. I HIGHLY recommend these �

United States United States

Wow these are the best!

I absolutely love these. I live in Miami and it’s super hot all summer so I don’t wear anything but dresses. But my two boys age 21 and 23 have been begging me to get something under my dress and stop showing my underwear. This is the perfect solution! I love them and I’m going to buy more colors

Kristin L.
United States United States

Love these!

Loved the fit, the breathability, and comfort of this product. Will purchase again!!!

United States United States

Love these for summer dresses

I usually wear a 2X and love to wear dresses. These slip shorts are cute and give extra coverage. I plan to order more, maybe a different size, not sure if I have the best size for me

Pauline C.
United States United States

Please improve on the waistband

In addition to the 9” Lace Shortlette Slipshort, I also purchased the Classic 6.5” Shortlette. . I much prefer the elastic waistband on the classic style. I find that the lace band on the 9” is very short-waisted and sets well below the actual waist. I always feels like it is slipping down. Not anywhere near as comfortable as the traditional elastic waistband on your Classic shortlette.

Christine C.
United States United States

No More Riding Up Thighs!

OMG these are the most comfortable undergarments I’ve ever worn! No compression and no riding up my thighs! I’ve always had to stop and pull down my compression undergarments in public! Not with these! They glide right along with me when I walk!!! And they are not hot to wear in the summer!!! Fabric is lightweight. Love wearing these under my maxi dresses in the summer!

Allison P.
United States United States

Slip short 9

Very comfortable I love the fit. I’m going to order more

Katherine O.
United States United States


Great held up in the 1st wash, fits nicely and doesn't roll. I would purchase again.

United States United States

Shortlette 9” length,

Fortunately I order 2 sizes....large and medium...the medium fit I ordered 2 more pair because they are the greatest!

Kimberly K.
United States United States

Five stars for me,very good product

I loved this item,very comfortable

Michael F.
United States United States


Absolutely love these! I don’t use them under dresses or what is advertised but instead use them under my scrubs to prevent chaffing from the inseam of the scrub pants. They don’t ride up or slip around at all. Very breathable so no issues with anything being to hot!

United States United States

Love it

I have been wearing undersummer slip short for years and love it. Really protects from chafing.

We recommend ordering based on your measurements
 Size (USA) Waist (in) Hip (in)
Small 30-31 37-38
Medium 32-33 39-41
Large 34-36 42-45
X-Large (1X) 37-38 46-49
2X 39-42 50-53
3X 44-48 54-57
4X 49-53 58-61
5X 54-58 62-66
 Size (USA) Waist (cm) Hip (cm)
Small 76-79 93-97
Medium 81-84 99-104
Large 86-91 106-114
X-Large (1X) 93-96 116-124
2X 99-107 127-134
3X 112-122 137-144
4X 124-134 147-154
5X* Fusion only 137-147 157-163


Shortlettes are generously sized  to hug but not squeeze your curves.  They are not compression and do not feel like nylons/hosiery, shapewear, bike shorts, or compression pants.  Shortlettes are simply comfortable.  They are not made to be tight, feel constricting, shape, pinch, or bind.  The longer lengths allows for maximum chafe protection and comfort.

Correct Fit Guidelines:
✔️ Waist should not roll
✔️ Body should glide comfortably against the skin
✔️ Legs should not ride up while walking

Signs of Incorrect Fit:
✖️ Baggy crotch (too big)
✖️ Running at the seams/Wears to fast (too small)
✖️ Slides Down (too small)
✖️ Legs ride up (too small)

Which is the best fit?

CarrieRae's Recommendations:

Under 5'4" - High Thigh, Athletic, or Classic Styles

Plus Size - Fusion, Classic, or Original Lace

Apple Shaped - Fusion, Classic, or Original Lace

* Order the size in-between your waist and hip measurement.  I.e.  Waist 3X + Hip XL = Order 2X

Pear Shaped - Try them all!

Hourglass - Lace or High Thigh

Slender - High Thigh or Athletic

My Shortlettes fall down, why? Are Shortlettes shape wear? Are they compression shorts?
How are Shortlettes different than other slip shorts or bike shorts? How long do Undersummers products last? Can you let your Shortlettes Show?

Contact Us:  Do you have a question that is not answered here?  Email us at and we will respond within 1 business day. 

updated 6/22/20