Smooth Duo Bike Short 10"

Regular price $85.00 Sale price $68.00
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4 in stock

Bike Shorts with built-in thong underwear. Designed to stay smooth over your shape and mitigate panty lines. Stay in or work it in this perfect pair. Made in NYC.

  • High rise
  • Inseam 10" laying flat
  • Moisture-wicking
  • Quick drying
  • Four-way stretch
  • Abrasion resistant
  • Static resistant

Heather Grey has black thong. Heather Sky has white thong with black liner.

Body: 88% Cationic Polyester / 12% Spandex. Lining: 90% Polyester / 10% Spandex

Machine wash. Tumble dry low. Do not iron. Do not bleach.

Shown on 5'6" model wearing size small

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. Liners may not be removed at any time. You’ll also need the receipt or proof of purchase. Undergarments must be worn to try on all merchandise. 

Start your return process here:

We want our customers to be happy with their new products! Let us know how we can better help with sizing and finding the right product for you by reaching out to

Size Guide

  US Size Waist (in) Hip (in)
XS 0-2 23 - 26 34 - 36
S 4-6 26 - 29 37 - 39
M 8-10 29 - 32 40 - 42
L 12-14 32 - 35 43 - 45
XL 16 - 18 35 - 38 46 - 48
XXL 20 - 22 38 - 41 49 - 51


*This chart is meant as guide for our customers. In an effort to help us make sure we get it right, please feel free to give us any feedback regarding its accuracy in relation to your experience with our product. 

Customer Reviews

Based on 5 reviews
Size: S
Height: 5’1”
Fit: Too tight
Activities: Anything I'm doing!
Such a great idea!

I love that I don’t have worry about pantylines! I’m normally a small, 5’1” 135lbs but a small was tight for me, I’ll have to order medium next time.

Monique S.
Size: M
Height: 5’9” - 5’10”
Fit: Correct fit
Activities: Lounging, Walking, Mat exercises or stretching, Low impact, Medium impact, High impact, Errands, Travel, Anything I'm doing!
Stays in place and keeps me cool while I exercise

These Heather gray bike shorts were gifted to me as my family knew I was obsessed with Meira Active’s 26” long leggings (have had my black pair for 17 months and they have held up beautifully through frequent wear and washing and hang drying). These fit well and you are not even aware of the thong (which is how all thongs should feel IMO). The 10” bike shorts moved with me through a barre/pilates/cardio dance class, where I’m jumping, extending legs, on all fours on the ground, squatting and doing pliés. They kept me cool with their length, hitting just above the knee. They wick away sweat and dry quickly. These hug my silhouette but do not feel restrictive despite all the movement. The Heather gray color goes well w/ so many colors; it’s a wonderful core piece for an outfit for working out or running errands but a refreshing change from black. Highly recommend!

Annette H.
Size: M
Height: 5’6”
Fit: Correct fit
Activities: Medium impact
Great pants

Fit nicely and love the undie’s.

Keep it smooth

We got rid of your underwear's side seams and vertical back seams

Why you'll love this

You're a human who moves

Shaped not to interfere with how your body moves, our built-in underwear acts as a lining to offer another layer where comfort is key. We always make sure there is no bunching or riding up. Next to weightless fabric is fit to stay smooth over your shape.

We do your work

Good news - we picked out half of your outfit! Your leggings and underwear are already paired. You will not have to search the laundry pile or drawer again! Usually go commando? You'll be truly impressed with how you'll still have that unrestricted feeling yet reap the benefits of another layer as weightless as it may feel!