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Men's Foundation Short

100 % of 100
Foundation is an innovative undershort, designed to deliver maximum freedom of movement, comfort and ventilation beneath baggies for fast- paced trail sessions, or extended bikepacking adventures.

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

Model is: Height 6’3”, Hip 37”, Thigh 21" and wears a small


Think of Foundation as a base layer for your lower half. 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 padded shorts. 



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


  • Men’s:129g


  • Highly breathable open mesh
  • Mens Performance Force chamois with nnovative front cutaway for breathability
  • Clean cut hem with silicon gripper


  • X-Small: 7 1/2” - 19.1 cm
  • Small: 7 3/4” - 19.7 cm
  • Medium: 8” - 20.3 cm
  • Large: 8 1/4” - 20.9 cm
  • X-Large: 8 1/2” - 21.6 cm
  • XX-Large: 8 3/4" - 22.2cm

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
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.

  1. "You can wear anything, but unless you’re made from iron, you’re going to want a little something between your body and the bike. That’s where the unglamorous, often unsung liner short comes in, and the 7esh Foundation Short is ready to be your new best friend this summer."

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Product Reviews

  1. Gavin

    Best under shorts EVER!

    Great trail short. A little lightweight for my taste for gravel or road and perfect for trail riding where the saddle is a little less of a factor. This also means the pad is a bit lighter and easier to wear after the ride. My GF calls these "lingerie for men" - the mesh sides are well ...

  2. Michael


    Bought these for trail riding. They are very comfortable for wearing under a mountain bike pant or shorts and do not interfere with knee pads. They are cool in summer, but you will need an additional warmth layer overtop when cold-weather mountain biking. Bought the medium, but I am sized more ...

  3. Lee

    No Problems Anymore

    Easy to get back in the saddle the next day after a long ride. No pain, no swelling no problems like that anymore. Will not buy any other branded pair of under-shorts now that I’ve tried these. How can you put a price on pain-free. And they look good around the campfire too.
  4. BC

    Exceptional in every way

    The Foundation Shorts are the finest undershort I've ever seen. First off, the chamois is a legitimate top quality long distance/ultra distance riding chamois, not the crap chamois used in every other undershort I've seen. The mesh sides make for cool riding and the real innovation of ...

  5. Mitchell

    Comfortable, cool and snug

    My best riding chamois. They are my most comfortable and most breathable and my choice for longer rides or short ones if I'll have time to wash them before going again. I followed the fit guide and they are quite snug at the thigh and waist but the pad stays in place better than my other pairs. ...

  6. Ben

    Foundation Short

    I picked these up to go under my Farside shorts and my winter riding pants. I found my MK3 bib shorts were too bulky to wear underneath pants but these are ideal. Also more comfortable than other chamois when you're off the bike and walking around.
  7. Hafez

    Excellent Product

    I have ridden in these now 1/2 dozen times and they are very supportive, very comfortable and fit well. I was apprehensive of the cost as you can get what look to be well padded chamois for $50. However, these have not given me any problems with rubbing or chaffing like the lower cost ones I have. I ...

  8. Parker

    Great Liners

    I purchased these to wear underneath my thermal tights for winter rides. Chamois padding is great and the fit is what you would expect. If you're teetering between two sizes, would suggest sizing down.
  9. Jeffthor

    Foundation Shorts

    I recently picked up a pair of the Foundation shorts as I was in need of replacement for my old liners. I was nervous about the price tag but they are worth every penny. Excellent quality and super comfortable. After riding a few times with them I had to pick up another and I think I might have ...

  10. Gerhard

    Very comfortable bike (under)-shorts, perfect for all kind of mountainbike trips

    Comfortable and cozy shorts for prolonged bike adventures, easy care and washing, mesh fabric perfect for wearing it underneath Farside or other 7mesh riding shorts. Seat cushion pretty comfortable
  11. Dan

    As advertised

    The more I wear this short, the more I like it. Gets the job done. Period.
  12. Johnny

    Extremely comfortable and breathable

    I purchased the Foundation Shorts to be worn underneath a pair of shorts. They are amazing! The chamois does a great job to provide comfort. They breath so well. Solid made shorts. For reference I sized down as recommended. I typically wear small in other brands and the XS fits perfectly. 7mesh has ...

  13. Roberto

    The best, got even better.

    My second Foundation Short, pad got better, tighter fit. Perfect ventilation.
  14. T-Daddy

    Best liner shorts I’ve ever worn

    These Foundation liner shorts are a revelation. They look a bit weird at first, but the chamois is just the right amount of padding without feeling like your wearing a diaper. I especially like how the front of the pad is truncated compared to more traditional designs, meaning you only have pad were ...

  15. Theo

    I have to get rid of my other shorts now

    I have been riding in chamois exclusively for over 10 years. These are the best yet. Very light and so comfortable I forget I am wearing padded shorts.

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