Athletic Underwear 6.5" Length (Black)

Size Guide

Athletic Underwear

Better than a bulky bikeshort with a smooth waistband these women's athletic thigh protection underwear slipshorts are made of lightweight cool breathable fabric, cotton gusset, and feature a long lasting seam free inner thigh.

* LIGHTWEIGHT SOFT STRETCHY FABRIC - Our Signature Premium Fabric is lightweight, soft, stretchy, silky and oh-so comfy. It allows legs and clothes to glide without pilling.  96% Polyester/ 4% Spandex, exclusive of trims, cotton gusset. 

*CARE - Machine wash cold, line dry. Once you have slipped on your favorite pair, you will want to wear them every day and every night.

* SEAM FREE INNER THIGH -  Superior thigh protection without added friction or weakness. Leg stays put while walking without riding up.  Our designs are made to last.  This is a staple wardrobe piece that you will wear often and for many seasons.

* MULTI-PURPOSE WEAR - Our Shortlettes are designed as a layering piece and to be worn as underwear.  Perfect to wear for sleep or for layering under a favorite dress; it is thin and lightweight.  Perfect for vacations, walking, the beach, amusement parks, water parks, date night, work, and more.  They are not meant to be worn as outerwear alone.

* DETAILS - Designed by a woman for a woman's body.  Comfort fit wide waistband smooths without being tight.

* NON-COMPRESSION FIT - Stretchy, comfy fit.  Absolutely Not Shapewear.  Made for all day comfort.

* CARE - Machine wash cold, line dry

* QUALITY GUARANTEED -We want you to LOVE your Undersummers garments.  Please contact Customer Care if you are not completely satisfied with your garments and we will be happy to issue you an exchange or refund.  Our Sizing is different.  Please use size chart and measurements for sizing.  

Type: Athletic Underwear

Customer Reviews
4.4 Based on 173 Reviews
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Crystal C.

Light and comfy. size was

Light and comfy. size was abit big so they are not Chinese sizes get ur correct size maybe even a size smaller from your normal

Nicola N.

Good sizing and nice finish.

Good sizing and nice finish. but they ride up a bit. I will give them another try.

Devin K.

I love them so so

I love them so so much. I was wearing the regular kind, then pregnancy kind then these. And as long as you size properly, these are the best kind if your usual outfit is a skirt post baby.

Maxine W.

Bit big for me but

Bit big for me but great product

Christina H.

I've only ever worn the

I've only ever worn the classic shortlette before, so this was shorter than I expected, and the feel was different, too, since the seams were on the back of the leg instead of the usual side, but I've since gotten used to them. They're still comfortable, and I will definitely look into ordering more for the future.

Lee-ann B.

Can not review since I

Can not review since I have not even received the merchandise yet.

Dixie B.

I like the length and

I like the length and material but the cut of them seemed off. I have a pair of lace ones and they are perfect but the cut of the athletic ones just seemed not right. They cut weird across my stomach. Unfortunately this makes them uncomfortable to wear.

Kaye R.

The athletic underwear is great

The athletic underwear is great as it allows me to walk much further without chafing.

Kathy h.

I LOVE your undergarments! hands

I LOVE your undergarments! hands down the most comfortable. They don't ride up, or slide down or give you wedgies and they're not so tight and restricting like most! My only suggestion is maybe you could make 4" inseam option for us shorties like me!

Martha C.

Having this undergarment has helped

Having this undergarment has helped me be able to wear dresses again! I love them. So comfortable!

Katherine C.

Comfortable all Day long!

Comfortable all Day long!

Liberty B.

Love these! Perfect length and

Love these! Perfect length and they don't ride.

Cody B.

I love, love, love the

I love, love, love the athletic underwear! I had to give this 4 stars though, the waistband is awfully tight, none of my other pairs are like this so I'm not sure what happened!

Sabrina G.

I ordered my size based

I ordered my size based on the measurements provided and unfortunately they are way too big. So big, they are unusable :-(. The one pair I received with the lace at the bottom causes my dress to stick too so I'm not able to wear them either. Otherwise the material is high quality and I'll try ordering again with smaller sizes later.

Grace S.

Love the feel. Awesome product

Love the feel. Awesome product

Dana M.

While these are cute and

While these are cute and fit nicely, unfortunately they ride and roll up when I walk half a block. I'm deeply disappointed since they were meant to be a pair of short-shorts to wear under a split maxi skirt (to show some leg without showing off my underwear) but even without doing anything more strenuous than walking, they ride and roll all the way up my legs (thus allowing my thighs to chafe together). When I adjust them and take the first few steps, they make that ski-pants "zip zop" sound under my skirt (not a huge deal, but between that and the fact that they desperately want to climb inside me, I'm regretting spending so much). I get the feeling these are probably meant to be used as actual underwear and not as chafe-protectors under dresses and skirts. For the price, I was expecting better.

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 and we will respond within 1 business day. 

updated 9/19/2018