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Foundation Bib Short

98 % of 100
Think of Foundation as a base layer for your lower half, an innovative bib short, designed to deliver maximum freedom of movement, comfort and ventilation beneath baggies.


Constructed with an airy, open mesh and a unique Force platform chamois finished with a front cut-away to relieve heat build up around sensitive areas, Foundation drives massive amounts of airflow, all while laying down a level of comfort equal to 7mesh standalone bibs.

For extended expeditions, Foundation features three large back pockets to complement storage on the bike and free up space in your outer short’s pockets.



  • Body: 78% nylon, 22% elastane
  • Contrast: 77% nylon, 23% elastane
  • Chamois: Elastic Interface Mens Performance Force (Made with recycled content)


  • Men’s: 168g


  • Three large jersey-style rear pockets
  • Highly breathable open mesh
  • Mens Performance Force chamois with innovative front cutaway for breathability
  • Clean cut hem with silicon gripper
  • Reflective logo
  • Inseam - 8.5” / 21.5cm

Care Instructions

  • Machine Wash Cold in a wash bag to prevent damage from velcro/zippers etc
  • Do Not Bleach
  • Do Not Iron
  • Hang To Dry
  • Do Not Dry Clean

Have a question? We'd love to hear about your next adventure.

Crash Replacement

Crash Replacement

Hit the hills and go full out on the flats without worrying about keeping the rubber side down. To ease your mind and stay focused on the ride, we offer a Crash Replacement Policy.

Skin Fit

Skin Fit

Products that blend performance fabrics with highly articulated patterns to create a close-fit that feels like an extension of your body. Skin Fit apparel improves aerodynamics, moisture management and thermal efficiency.


Product Reviews

  1. Mahykal

    Soo silky and comfortable

    I'm gonna be honest, at first I wasn't sure what to think about this fishnet line liner. My wife says they are super sexy.. :) My first ride didn't go well, I got chafed and I almost gave up on them. My problem was I used them on a hot summer day on a 5hr road/gravel ride with no ...

  2. The Only Juan

    Happy seat bones!

    It can't get more comfortable than this Bibs ! I've tried all major major brands best models and these are my favorite by far!
  3. Arnaud

    Comfort and breathability are amazing!

    I was looking for nice bib short with a chamois to wear under gravel shorts. As I simply love the comfort and overall performance of my RK1 summer bib short, I did not hesitate long and ordered the Foundation Bib Short. Wow, it did not disappoint! As for the RK1, the chamois concept works ...

  4. Conor

    Amazing summer bibs

    Super breathable, nice design touches with exterior only seams and nice chammy. Love having three small pockets at the back. Better than any other bib I've tried at this price point.
  5. Steve

    No need for a pack!

    Long single track rides in the mountains require a jacket, food, tools/tube, wallet and phone. The Foundation bibs, along with the pockets in my shorts allow me to leave my pack at home. Super breathable and comfortable. Thanks
  6. Owen

    Airy Comfort

    These bib shorts are extremely well ventilated, the mesh construction is well executed and provides the best moisture management in any mountain biking garment I have in my closet. I actually feel the difference when riding, other brands may make that claim but they don't come close to the ...

  7. Marc

    Awesome shorts

    The shorts are great. Very breathable and lots of room for tools and extra food. I only with the back pockets (or at least one of them) was a little deeper to better hold a second water bottle.
  8. Scott

    Comfortable / Breaths Well

    Excellent bib short. Breaths very well under shorts. Chamois is very comfortable.
  9. Mike

    Always the first pair out of the laundry!

    The mesh material keeps you noticeable cooler under your baggies and the chamois is extremely comfortable with it minimalistic design. The straps are made of the open mesh material as well, which really does keep give you an airy feeling. The front cut out does exactly what it is supposed to - keep ...

  10. Daniel

    The perfect match with a baggier short.

    The Foundation Bib Short are my favorite for warmer rides. Paired with a baggier short like the Slab or Farside they give a totally different experience compared to riding with a traditional bib short under your baggy short. So much cooler and more ventilated makes it much more comfortable on long ...

  11. Justin

    A blissful experience.

    These shorts are unlike any under-short I've owned. Ventilation is remarkable and the cut away in the front of the Chamois is a blissful feeling. They feel really light and truly disappear when you put them on.

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