Fusion Shortlette Anti Chafing Slipshort 7" Length (Black)

Size Guide


Undersummers Short Length Fusion Shortlette™ Slipshorts are the perfect high waist rash guard panty shorts that provide the ultimate thigh protection for women now with a shorter leg length for shorter skirts and dresses.

Shortlettes are foundation wear that are not shape wear, and are non-constricting. Our Short Length Fusion chafe prevention slip shorts are a combination of our Lace Shortlettes leg feature and leg length with our Classic Shortlette waistband. 

Our Fusion black moisture-wicking, anti-chaffing slipshorts are available in both regular and plus sizes.

Why Undersummers Short Length Fusion Shortlettes?

  • High waist rise
  • 7” seamless inner thigh for maximum protection
  • Stay-put leg design resists leg creep while walking or running
  • Seam free inner leg is added anti-chafe protection and longer wear
  • This is a panty, no need for a second heat inducing layer
  • Assembled in the USA





Customer Reviews
4.6 Based on 87 Reviews
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Sheryl W.
New Zealand New Zealand


Recommended by friends at dancing- means I can wear skirts with no chafing and no flashing

Rachel C.

Super comfortable. Great to wear

Super comfortable. Great to wear under dresses

Kirsten G.

They feel so sexy but

They feel so sexy but comfortable! I love the lace detail at the bottom and I’ll definitely be getting more in other lengths and styles!

Anna R.

I am so happy to

I am so happy to have found these! So lightweight and perfect for under my dresses. I can roll around on the floor with my kiddos and stay covered :0)

Katherine P.

Great product

Great product

Michelle K.

I really like the under

I really like the under summers but when mien arrived, it already had a loose thread. For the price, I was disappointed but it didn't ruin the item and I like the feel so I decided to keep it. I am unsure if I would buy another based on the quality.

Kim-marie M.

Love them!!! I wear dresses

Love them!!! I wear dresses almost everyday and I love these under my dresses...:heart:️

Theresa K.

I wish I hadn’t waited

I wish I hadn’t waited so long to order my shortlettes! Perfect fit (took my measurements and followed size chart.) They are comfortable and silky smooth. No riding or rolling. I ordered a basic black and a fun color, poppy, that just makes me feel sassy when I wear them!

Jacqueline W.

I wonder if I bought

I wonder if I bought the wrong size, the legs kept riding up. I do love the product though.

Antoinette H.

Awesome feel fantastic

Awesome feel fantastic

Paige T.

I can wear dresses again!

I can wear dresses again!

Lisa G.

Great fit. Awesome to wear

Great fit. Awesome to wear in my climate.

Julia M.

Love them!

Love them!

Adrienne R.



Traci L.

Great product

Great product

Shannon D.

Love the whole process. They

Love the whole process. They were easy to order and shipped quickly. Had a conference and decided to wear dresses, these were amazing. Even when I had a 'Marilyn' moment walking down the sidewalk. Working in the sales industry, I was very impressed to receive an e-mail from the owner herself to be sure I was completely satisfied. Highly recommend these to everyone.

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 54-57
5X* Fusion only 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 9/19/2018