The Original Biker Short Underwear

$45 CAD $0.11

Ditch the bulky biker shorts — these versatile shorts give you modest, flash-proof coverage under dresses or comfortable standalone wear for errands and workouts (no underwear needed).

Versatile and practical

Coverage: Opaque

Three-quarter view of The Original 5 inch Sandstone shorts showcasing anti-chafe fabric and high-rise 5-inch inseam on model against neutral background
Side view of The Original 5-inch Sandstone shorts on model showing high-rise fit and anti-chafe seamless hem on beige background
Rear three-quarter view of The Original 5-inch Sandstone shorts showing high waist and mid-thigh length on model
Front of The Original 5-inch Sandstone shorts on model showing high-rise waistband and smooth anti-chafe leg seams against a neutral background
The Original 5" Sandstone
The Original 5" Sandstone Thigh Society
The Original 9" Sandstone Thigh Society
The Original 9" Sandstone Thigh Society
Front view of The Original shorts showcasing 5” 7” and 9” inseam length markings on models (top row size M/L, bottom row size L/XL) with neutral beige background

The Original Biker Short Underwear

$45 CAD $0.11

Ditch the bulky biker shorts — these versatile shorts give you modest, flash-proof coverage under dresses or comfortable standalone wear for errands and workouts (no underwear needed).

Versatile and practical

Coverage: Opaque

Pocket

No Pocket

Cargo Pocket

Size

XS
S

S
M

M
L

L
XL

XL
2XL

Product variants

Color

Sandstone

Core

Seasonal | Going away soon

Length

5"

7"

9"

The Original

Black

Beige

Mocha

Charcoal

Sandstone

Almond

Raisin

Sage

Lapis

5"

7"

9"

Mix & Match any style or color

*Offer cannot be combined with other promotions.

Provides modest, reliable coverage under dresses, skirts, and sheer layers — no flashing when you bend, reach, or move
No front, side, or back seams for a smooth, no-dig fit that is invisible under clothes
Anti-chafe panels prevent thigh chafing without rolling or riding up
Comfortable 360° stretch that always holds its shape – no sagging or bagging
Durable and sweat-wicking for all-day comfort
Tagless labeling to avoid skin irritation
Knit-in cotton crotch means you can skip underwear – one less layer, less heat, less bulk.
UPF 50+ fabric for added sun protection

Free shipping on 2+ shorts and all orders ship from our Toronto 🇨🇦 warehouse.

Typically, you’ll receive your order about a week and a half after purchase. Lightning fast? No. But we guarantee your slip shorts will be worth the wait.
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30 day fit guarantee on your first pair.
Details Here.

Each component of this OEKO-TEX® STANDARD 100 certified item has been tested for substances that could harm your health by Hohenstein Laboratories GmbH & Co. KG cert#: 24.HCA.84372

50% Sensil® Breeze nylon, 37% nylon, 12% elastane, 1% cotton

Machine wash cold, tumble dry low. It’s almost too easy.

A Base Layer Worth Showing Off

Real-Deal Coverage

Lighter than bike shorts

Wear Under Clothes or Alone

Est. 2014

Anti-Chafing & Sweat Wicking

No Rolling or Riding Up

The Original

Wear When You...

Khrystyana is wearing The Original in Size M/L

Veronica is wearing The Original in size XL/2XL

Riley is wearing The Original in size M/L

Marina is wearing The Original in Size L/XL

The Original

Frequently Asked Questions

We know, right? It’s partly because of the clever construction, partly because of the first-rate fabric blend, and partly because it supports your body without feeling constricting.

They're both! We’re glad you asked. Think of them as a combination between an old-school slip, a boxer brief and biker shorts: They give you coverage under short or too-sheer outfits, stop your inner thighs from trying to start a forest fire, and light smoothing with no VPL (the word “panties” weirds us out, too). Plus, the knit-in cotton-rich crotch means you can wear them without underwear if you want, eliminating the need for an extra layer.

Thigh Society shorts don’t compress you or suck you in like shapewear. Instead, they’re a lightweight, breathable, sweat-wicking essential you’ll reach for again and again.

Flexible and stretchy, our waistband is made from the same fabric as the shorts, just double-folded and sewn-in. It stretches to your curves, never cuts into them. The waistband is like the Loch Ness Monster: you’ll doubt it really exists.

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Fit: Runs Large

Pant Size: XL

Size Purchased: XL/2XL

Love wearing these with my work dresses. Stays in place and feels nice on the skin!

Fit: True to Size

Pant Size: M

Size Purchased: M/L

Comfy as heck and stays in place!

Normally not a review kinda gal, but I was legitimately blown away by these shorts! I'd been looking for something that would protect from thigh rub when I was walking, but still be lightweight, and wouldn't ride up on my thighs like other 'thigh protectors' had in the past (what is the POINT if they ride up, right?). I'm pleased to say that these were comfy, lightweight, durable, easy to wash/dry, and did NOT ride up my thighs ONCE. The waistband didn't cut in (neither did the leg bands), and I was able to feel comfortable & pain-free for a whole day of walking. AMAZING. I opted for a M/L and am glad I did - I normally wear a size 10. (If you have a small tummy and/or no bum, I'd say you'd probably want to size down to S/M.)

Fit: True to Size

Pant Size: XL

Size Purchased: L/XL

Very impressed!

I've tried a few different types of shorts to wear under dresses. Bike shorts, petti pants, snag tights etc. . .but these are the first I genuinely want to wear again and again. The legs don't ride up. They aren't too tight. Will probably buy more in the future.

Fit: True to Size

Pant Size: M

Size Purchased: S/M

Excellent

I wasn't sure what to expect with these. I worried they would be bulky. But they feel great and give nice coverage. I wore them under a dress to a wedding and danced all night. For reference I am 5'1 and 124lbs. I got size S/M. I was worried they would be too small but that was the correct size for me.