Black Under Dress Shorts | Black Thigh Protection Shorts

Classic Shortlette Anti Chafing Slipshort 6.5" Length (Black)-Best Seller!

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Undersummers Classic Shortlettes®️ Anti-Chafing Slipshorts

It's the details in our black under dress shorts that make the Undersummers difference:

  • Seam-Free Inner Thigh offers superior thigh protection
  • Stay-Put Leg keeps your legs protected during activity
  • 6.5" Inseam
  • 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 

The Original Classic Shortlette is a better than bike short solution for wearing under dresses.  We hear the comment all the time;  I wear a bike short under my skirts and dresses.  CarrieRae did too... for many years, however bike shorts are thick, hot, and have a bulky waist band.  They are not a single layer solution without the cotton gusset.  CarrieRae designed the Shortlette®️ to be a lightweight, cool, breathable solution that did not ride up or roll when wearing.  This black thigh protection short is figure flattering, comfortable, and cute enough to show!

R. 7/9/19


Type: Classic Shortlette

Customer Reviews
4.6 Based on 773 Reviews
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Australia Australia

Awesome product

Fantastic product, shorts don't ride up or roll at the waist. They feel cool to wear even in the summer heat and are really comfortable

Angelica R.
United States United States

Classic Shortlette Anti Chafing Slipshort 6.5" Length (Black)-Best Selle

Great size, great shape!

United States United States

Love the classic shortlette

I have been wearing these for the last four years and I love them! I had a minor issue with a product once and customer service was prompt and responsive and resolved my issue easily and right away. Highly recommend!

United States United States

So far so good

I haven't had a chance to test these in the wild yet, but I've worn them around the house and love them. The legs don't ride up. The waste band doesn't roll down. They are soft and comfortable. I'm about 8-10 I got a medium and the fit is good. They are not tight and suffocating like slimmers. I'm happy and even more excited to wear these under my summer dresses.

Ashley P.
United States United States


I don’t know how I went without these for so long. They’re so comfortable and make wearing dresses stress-free! I wear one nearly every day now.

Tess M.
United States United States

Makes noise when you walk.

So first off, I emailed about my size and they suggested an xl and they are a little baggy so I’m kinda bummed they don’t feel super secure. My other complaint is that when you walk and your thighs rub together they make noise. Obviously if you buy these more than likely your thighs touch each other when you walk so it really doesn’t make sense why they have fabric that would do this? But my thighs didn’t chafe while wearing them so I guess they did their job.

United States United States


it was so nice to wear a cute dress and then have the comfort of undersummers. I live in the high humidity part of the US... Thanks Under Summers!!

Sherry H.
United States United States

My Favorite!

I have to admit, my Undersummers cost more than some of my dresses, but they are so worth it. In the past I've had "chub rub" that raised welts and blisters, and even the anti-chafing sticks made for serious runners didn't help. Not with Undersummers. And the materials are such good quality, I can't tell the ones I bought at the beginning of the season which have been washed many times from the ones I bought at the end of the season. The Classic is my favorite---I prefer the seams in the front (unlike the Athletic style with the seams in the back), and since it doesn't have lace I feel like it doesn't scream "Underwear!!" if my skirt flips in a windy parking lot.

Kathleen F.
United States United States

My thighs have never been so happy!

Love these soooo much!

Michelle B.
United States United States


Loved them, they work great!

Courtney C.
United States United States


These are the perfect under dress shorts if you don't want any of that compression nonsense. I even wear them around the house as shorts on really hot days! The fabric is silky so that dresses don't "stick" to them and they fit true to size. I have a big belly (around 40") and ordered a 2XL.

United States United States

Nice product

Love my undersummers. Keep me cool, do not climb up the leg.

Angela A.
United States United States


fits well, feels comfortable

Laurel P.
United States United States


So comfortable! Great for under dresses, especially summer fly away ones! Get comfy and look cute!

Susan R.
United States United States

Love them!

These are so comfortable under sundresses and skirts! I'll be ordering more!

Michelle W.
United States United States


I really wanted to love these, but just didn't. I wish the waistband at the top was wider. The tiny, narrow waistband just annoys me and isn't comfortable. Also, I wish they offered a shorter version. Even the shortest ones are too long if you're wearing a short dress. They also just seemed pretty cheaply made, for the price you pay. I will not purchase again. I have cute yoga shorts that work better under my dresses. Wasn't impressed with their customer service either.

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