FREE shipping and returns, always // FREE international shipping over $500
Top Shop Menu Utility Links
Pedal Through, by first-time film director and new mountain biker Analise. Follow her journey of self-healing and growth during a week-long bikepacking adventure through the Oregon backcountry.
INSPIRED BY THE TRAIL, DESIGNED FOR ANYWHERE
Meet the Key Short, the cornerstone of the Versatile Off Road Collection and an overshort designed to adapt to all of your outdoor adventures. From mountain biking, to gravel touring, to urban commuting, to hiking, the Key Short brings Machines' superior fit, construction, and modern styling to this technical outdoor short.
Available in sizes 24-40.
Your wishlist has been temporarily saved. Please Log in to save it permanently.
What would it look like if we brought the Machines aesthetic to the mountain bike and outdoor space? Could we create a short that is equally suitable for bombing single-track as it is for casual day hike with friends? The result of that exploration became the Key Short. A short rich in technical features to have you blazing trails comfortably, with styling that takes you from your bike to the coffee shop without skipping a beat.
- 100% Polyester
- 4-Way Mechanical Stretch
- UPF 50+ by construction
- Water resistant
- Moisture wicking
- Quick dry
- Slide locking snap closure at waist
- Front scoop pockets
- Rear secure zip back pockets w/ puller for easy access
- MFF signature rear phone pocket hidden in waistband
- Offered in 5.5" and 11" inseams
- Contoured hem to reduce excess fabric at knee while riding
The Key Shorts are cut true to size and have a slim fit.
Choose the size closest to your waist or jean size.
Athena is wearing a size 27 and is:
5'10" / bust 34" / waist 28" / hips 39"
Essence is wearing size 28 and is:
5'7" / bust 36.5" / waist 28.75" / hips 41"
Demi is wearing size 26 and is:
5'8" / bust 33" / waist 25.75 / hips 37"
Bianca is wearing size 36 and is:
5'10" / bust 45" / waist 40.5" / hips 50.5"
Demi is wearing size 25 and is:
5’8” / bust 32.5” / waist 25” / hip 36”
Lexa is wearing size 38 and is:
5'9" / bust 48.25" / waist 42.5" / hip 47"
Check out our Fit Guide for more detailed instructions, or pop your measurements into our fit calculator for a personalized recommendation!
All orders are shipped free within the US, and will include a pre-paid return label for easy returns and exchanges.
If ordering from outside of the US, be sure to check local duties and taxes! Machines does not cover this cost and rates vary country to country.
For international returns, please use the carrier of your choice and return to 1475 S 5070 W, Salt Lake City, UT 84104
As always, we put fit first and this product was thoughtfully developed to perform for every shape. Offered in sizes 24 through 38.
This slide-locking snap closure will keep you buttoned up, even when you're letting loose.
Our 4-way mechanical stretch gives you maximum flexibility. This short will truly keep up with you where ever you are headed!
Pop colors and tastefully designed reflective details give you added style, and safety, on the road.
Ordering two sizes to compare is a great way to ensure the perfect fit. Check out our super easy Return Policy and Happiness Guarantee!
For cycling bibs and shorts, the HIP MEASUREMENT is the most crucial factor. Measure around the WIDEST POINT of the hips/bum. If you are between sizes or petite (5'3" or under), we recommend SIZING DOWN for a compressive fit. A snug fit is crucial to performance. Check out our FIT GUIDE for more detailed instructions, or pop your measurements into the fit calculator above for a personalized recommendation! (Please note, the fit guide requires chest, waist and hip measurements.)
Comfy and easy to move in, but the sizes run a bit big.
However, I think the green runs small for the size (32) through hips and thighs
I found that these were a bit tight in the legs and loose in the waist for cycling-focused shorts, which means the legs tend to ride up. However, with undershorts on, that didn't bother me that much. I think they look cute and are a good color, and the pocket in the back is big with plenty of room for phone, keys, etc. The front pockets are a bit useless if you are actually riding, because that's where your hip creases, but they're cute when just wearing the shorts around.
With our new fit guide, we take the guesswork out of finding your perfect size.Learn More
We stand by our products and want you to love them too. We offer a three-tiered guarantee program to protect you and your purchase.Learn More
Shop Women's Cycling Kits and save $50. The best women's cycling clothing you've ever worn, in your perfect size, use code: BUILDYOURKIT! at checkout.
Returns are easy and free for all domestic orders, so you can shop with confidence.Learn More