Mint 9" Inseam Anti-Thigh Rub Shorts | Undersummers

Fusion Shortlette Anti Chafing Slipshort (Mint) 9" Length Limited Edition

3/$90 - Any 3 Reg. Priced Fusions - Code: FUSION3

Size Guide

-The Original Shortlette®️-

Undersummers Fusion Shortlettes®️ Anti-Chafing Slipshorts

  • High waist & long leg gives these 9” inseam shorts maximum comfort, protection, and coverage
  • Seam-Free Inner Thigh offers superior thigh protection
  • Stay-Put Leg keeps your legs protected during activity
  • Anti-thigh rub shorts have a front seam that 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


Type: Fusion Shortlette

Customer Reviews
5.0 Based on 13 Reviews
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Amy P.
United States United States

A Treat!

Under summers are the best!! To me they are a treat because they’re pretty expensive. I watch for sales etc and try to buy a pair 2-3 times a year. Would love to see more bright colors or even fun prints.

Jodi R.
United States United States

Mint green is so fun and pretty!

I love these! I love the color! I love that it contrasts from my dress colors, so if anyone catches a glimpse of my undergarment, they will know it is an undergarment and that it is not my skin. I love the fit and comfort of these. I will definitely be ordering again!

Diana D.
United States United States


Love these best undershorts, keep you cool on hot days. They do not roll down or the thighs slide up. I have really big legs and could never find anything to work until these!! Love love love!!

Elizabeth W.
United States United States


Love these!!! The mint color is gorgeous and more like a deeper sea green :)

United States United States

Love them!

I'm 5'3", 255#, and experimented with the 9" length...they were a little too long, so the lace part at bottom just sort of hangs loose at about my knees, rather than hugging thighs as preferred. Not a huge problem; when sitting they're probably just right, hiking up a tad. 7" better for me. So comfy; no binding at waist. This summer I'm wearing a lot of lightweight tie-dye jumpers with tees, and the Undersummers are so much cooler than cotton/spandex capris (my other go-to), and unlike the leggings, allow the dress to slide over my bum instead of getting 'hung up' on it, lol. Thanks, Undersummers!

United States United States

So grateful for undersummers

I had all but given up wearing dresses until I found these, and just introduced a friend to them as well - she had also been hesitant to wear dresses. They're great for bed or under clothes. I'm so much more comfortable now and also feel sexy and stylish in them.

Judith M.
United States United States

Great summer secret!

I wear these Under all of my dresses and skirts in the summer they are very cool very comfortable and the material is wonderful !

Trisha C.
United States United States

Great product and great color!

This was an easy purchase and I love it. I'm not usually a "green person" but I just had to have this one and I was so delighted to see it in the new, longer 9 inch leg length. This length is my new favorite. It makes wearing dresses a breeze again. Thank you, Undersummers!

United States United States

Love these

Super comfy. Not too tight. Eliminates chub rub.

Rebecca .

The best shorts!

I've been buying these shorts for many years now and they are always hands down the BEST shorts you'll ever find! The fit is always perfect, they don't bunch up or roll down. They're so comfy I don't even notice I have them on. An absolute life saver if you have chronic pain and find regular underwear too constrictive. So many pretty colours too!

United States United States

Best Product on the Market!

I first purchased a pair of these about a year ago after years of trying different types of bike shorts/spandex/athletic shorts/etc. I tried the shorter length (no lace) first and had some minor issues with them riding up on the thigh. Once I switch to the 9" I haven't had a single problem. These have no joke changed my life! The quality is amazing! The ones I ordered a year ago are in the same shape as the ones I just received. This is an amazing product and worth every penny!

Patricia H.
United States United States

So comfortable

Love them! Bought a couple different colors. So comfortable and easy to move in.

United States United States

Fusion 9" Mint Shortlette

I purchased a few shortlisted last year and saw that mint had come out. Ordered one to wear under a light weight green dress. I love how I feel covered if the wind blows and my legs do not chafe. Awesome product.

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