9-Inch Inseam White Slip Shorts | Lightweight Anti-Thigh Rub Shorts

Fusion Shortlette Anti Chafing Slipshort 9" Length (White)

Size Guide

-The Original Shortlette®️-

Small Details Make the Difference

Undersummers Fusion Shortlettes®️ Lightweight Anti-Thigh Rub Shorts

  • High waist & long leg gives this maximum comfort, protection, and coverage
  • Seam-Free Inner Thigh offers superior thigh protection
  • Stay-Put Leg keeps your legs protected during activity
  • 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
  • For a shorter leg, check out our 7-inch inseam white under dress shorts
  • Assembled in the USA


Fusion Shortlette Thigh Protection Slipshorts in 9" length are the perfect all day solution for women wanting a comfortable all day long legged underwear.  These 9-inch inseam white slip shorts protect against thigh chafing while also providing modesty.



Type: Fusion Shortlette

Customer Reviews
5.0 Based on 14 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • undersummers
  • ones
  • dresses
  • someone
  • advantage
  • surprise
  • Fusion style
  • slipshorts
  • collection
  • quality
New Zealand New Zealand

Exactly as described.

So comfortable. Do exactly as they are designed to. I expect to get a lot of use out of them this summer.

United States United States

Love Them

Very soft and feminine got a lot of compliments about how cute it was and the lace was so soft. Some lace u were is ruff but not this . Thank you and I will be ordering again , thank you for these .

carol d.
United States United States


These are what we used to call pettipants. They are comfortable and when it is hot it is just what a girl needs.

Trisha C.
United States United States

My most versatile pair of Undersummers ever!

I love my undersummers ( I own at least 7 - 8 pair now) but the white ones are so very versatile. I can wear then under any dress and feel wonderful. I do love my undersummers and am so glad you developed them, Carrie! Thank you!

Debi S.
United States United States

love it!!!!!

Feel so good. Make walking fun again. Thank you, undersummers

Elizabeth W.
United States United States

Love the longer length!

I continue to LOVE my Undersummers! The longer 9" length in the fusion shortlettes is exactly what I was looking for! I continue to recommend Undersummers to everyone I meet!

Trisha C.
United States United States

LOVE the new 9 inch leg length!

I do love my Undersummers. They are so nice and easy to wear and care for and they make wearing dresses so much more comfortable (and nice). They look nice too, if anyone chances to catch a glimpse. I have several of the shorter ones, but the 9 inch leg ones are by far, my new favorites. Trisha Colvin

Diana T.
United States United States


They are the very thing I have been looking for for years! Thank you for making them, seriously! They fit like a dream and my dresses do not cling, I’m getting some more soon and pretty colors, white is just one of the necessities now for some color! Love,love,love

Anonymous .
United States United States

Fusion Shortlette

I love these- I have been wearing them for years. I just wish there wasn’t a seam down the front of the thigh. With some of my skirts when I walk the seam is visible. I’d rather people not see the “thigh line” but other than that I’m totally satisfied!

United States United States

Great product!

Just got my undersummers. They fit great and now I’m comfortable wearing my summer dresses! I’m also a 1st grade teacher and wearing dresses around little kids can be kinda risky! Now I have a little extra coverage “insurance” when wearing a dress to school.

Tazita K.
United States United States


These slipshorts are great quality. I use them under my white dresses and they help my thighs stay comfortable. I am 5'7', 240lbs. and the 2X is a perfect fit. My pant size varies between a 16W to an 18W. My waist is currently 42 inches... I hope these numbers help someone!!

Undersummers by CarrieRae Fusion Shortlette Anti Chafing Slipshort 9 Length (White) Review
Theresa L.
United States United States


I always wondered why there were no white Undersummers In the Fusion style. To my surprise, there they were a few weeks ago. I took advantage of a coupon I had a bought them. And I love them, just as I love all the other colors I have in my Undersummers collection. Thank you Carrie Rae❣️ I’ll be wearing these a lot this summer.

Nancy M.
United States United States

9 inch

Undersummers are the best. Please try them, you will love them.

United States United States

Great product

I really like the fit. I am someone who still wears a slip. I didn’t feel I had to wearing the under summer shirtlette.

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 info@undersummers.com and we will respond within 1 business day. 

updated 6/22/20