FREE shipping and returns, always // FREE international shipping over $500
BUILD YOUR BASE
With just enough padding to keep you comfortable in the saddle-but not so much that you look and feel bulky-the Foundations Liner Short glides smoothly under clothing or cycling layers. Made with ultra-high-wicking fabric and breathable mesh panels, this durable base layer efficiently wicks away moisture and helps reduce chafing, even on the sweatiest rides. Use the Foundations Liner Shorts to cushion your commute, buffer your MTB ride, or pad your Peleton workout. No matter where you are headed, we'll help you build your base.
Make it a match set with our compatible Foundations Sports Bra.
Foundations is our feminine solution to performance undergarments, and it all started with a hunt for the perfect cycling shorts. For most rides, cycling bibs and shorts are overkill in the padding department, but no chamois at all is just plain painful! We wanted something in between full-on bike shorts and unpadded Lycra, but we couldn't find our dream liner shorts anywhere. So we made our own!
- 72% Nylon / 22% Elastane
- 4-way stretch
- Moisture Wicking
- Quick dry
- Breathable mesh details on side and back for ventilation
- Medium Compression
- Seamless silicone gripper, eliminates rolling
- Hidden credit card pocket at interior waist
- Built in Chamois w/ smaller footprint, lower profile, less bulk
5.5" inseam length
The Foundations Liner Short has a slim fit.
Choose the size closest to your Hip.
If you are petite, size down.
If you want a form fit, size down.
Demi is wearing a size Medium and is:
5'8" / bust 33" / waist 25.75" / hips 37"
Athena is wearing a size Large and is:
5'10" bust 34" / waist 28" / hips 39"
Bianca is wearing size XXX-Large and is:
5'10" / bust 45" / waist 40.5" / hips 50.5"
Check out our Fit Guide for more detailed instructions, or pop your measurements into our fit calculator for a personalized recommendation!
To get the longest life out of your garment, we recommend washing it in cold with a mild detergent, and hanging it to dry.
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
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.)
I’m an outdoor rider and got these for indoor training. I’m tall 5’10 and pear shaped. I already sized up in the shorts by advice of the sizing chart and they are still very snug around the legs. For an indoor trainer i find the inseam too short- the tops of my thighs are exposed to rubbing and the grippy tape flips up and they don’t stay put. The chamois is thin, which is great, but not comfortable for over an hour on the saddle. The waistband is super high which is great, but in a road or spin body position, the waistband doesn’t stay put and rolls over. I don’t find the waistband too snug and have a pretty flat belly so this is weird. I’d prefer longer inseams and a slightly lower waist.
Wouldn’t wear these any longer than cruising around town. 40kms is when I realised I should have put my other MFF knicks on. The chamois is a lot thinner making them sit fine under the trail shorts and for shorter rides. The mesh keeps you cool and the length is great. I’d like the chamois a little thicker. I’d definitely size up one. Overall pretty happy and have been using them frequently.
Got two pairs of these when I did the Colorado trail, kept my butt happy so no complaints. The grippers do roll up quite a bit but like I said, no real complaints if my butt’s happy.
I really liked the material and mesh along the side of these liner shorts but sadly the sizing was off. I currently wear a small in the MFF compression bibs and these shorts fit well in the thigh but at my waist it was uncomfortably tight and rolled over when I leaned over in a cycling position. I was really bummed because I liked the lighter padding on these shorts than my full on bibs. I was also hoping to wear these with the key hole shorts but those I ordered in a 27 and surprisingly felt wide at the waist. I think if you find the right sizing these are a great short and if you're between sizes, I would recommend going up!
I sit squarely in the middle of a size medium and was super excited to try these liners since I feel pretty "meh" about the Zoic ones I have. Unfortunately they aren't so great for my body shape and short stature (5'2"), since my waist is pretty straight up and down. The waistband immediately rolls over when I move and becomes very uncomfortable, like someone has tied a rope around my middle. SUPER disappointing, since the chamois and the rest of the fit is fantastic!
These would be better for someone who has a more hourglass shape, or at least a waistline that goes in significantly. Even though I am on the short side, my torso is proportionate and these seemed to have too long of a waistband as well. Glad the bibs are back in stock so I can give those a shot instead...