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  • Men's Runderwear Brief - Black - Runderwear
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  • Men's Runderwear Brief - Black - Runderwear
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  • Men's Runderwear Brief - Black - Runderwear
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  • Men's Runderwear Brief - Black - Runderwear
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  • Men's Runderwear Brief - Black - Runderwear
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Men's Runderwear Brief - Black




 (Click for sizing info)


  • 5 star running underwear

    Your Briefs sorted me out for the London Marathon! Thanks :-)
    - Phillip Tarry

  • 5 star running underwear

    I race cyclocross during the winter and wanted something that would restrict the movement of things as you get off and back on the bike. These briefs work very well and are not to thick so that you don't really notice you have them on under your padded cycling bib shorts.
    - Anthony - Norfolk, UK

  • 5 star running underwear

    Very good feeling, using them under compression tights and they are barely noticeable, only positive effects.
    - Nick - Sweden

  • 5 star running underwear

    Fantastic pair of pants, you forget your wearing them, you will love them.
    - Oliver - Berkshire, UK

  • 5 star running underwear

    After years of running commando" and some chafing issues I tried the Runderwear briefs. I found them to be so supportive and comfortable that I now have six pairs. I would thoroughly recommend them to anyone."
    - Gaz - Watford, UK

  • 5 star running underwear

    This underwear are just great when you them under runningtights. never think about wearing them after putting them on. No blisters.
    - Freddie - Sweden

  • 5 star running underwear

    I wore this when training and running the marathon part of an Ironman this year without doubt the best pair of running keks ever. They feel a little weird when you put them on but you really don't notice them when running Brilliant bit of kit.
    - Simon - Devon, UK

  • 5 star running underwear

    Had these to replace some Sloggi support briefs that have done me proud through many runs. These are loads more comfortable and offer the same support. Now buying two more pairs to keep me going.
    - Mark - Norfolk, UK

  • 5 star running underwear

    Best I've ever worn - no chaffing here - just bought another pair!
    - Steve - Gloucester, UK

  • 5 star running underwear

    I have never worn underwear made from a technical fabric and have tended to use a cotton boxer, if honest I was a bit skeptical as to how much benefit they could be. However having tried them I won't be going back to the cottons! I found these to feel more comfortable, breathable and held there position well (no riding up or twisting!), they also remained lighter after a long run as perspiration is wicked and evaporated, as apposed to remaining in the fabric like cotton. This product has made it onto my essential kit list for any run.
    - Richard - Portsmouth, UK

  • 5 star running underwear

    Difficult to find decent seamless running briefs for men, but these are perfect for the job. Great fitting and very comfortable.
    - David - Hampshire, UK

  • 5 star running underwear

    I love the fit of these. I'm 77kg 188cm and the medium is perfect, so much so that I've ordered another 5 pairs. They don't ride up, as the body is deep enough to cover the entire buttock.
    - Peter - Scotland, UK

  • 5 star running underwear

    It is hard not to sound over the top about these. I have never reviewed underwear before. Let me put it this way - if I could afford to buy enough of these so that I could wear them every day, I would.
    - Andy - Adelaide, Australia

  • 5 star running underwear

    Recently wore these in a marathon, they were perfect.
    - Ben - Melbourne, Australia

Product Details

The Men’s Runderwear Support Briefs are designed to give you maximum support with the highest level of comfort that you need from your briefs. Get support where you need it most with using Runderwears seamless technology. The fabric is engineered to wick moisture from the skin, helping reduce any irritation.  Chafe-free, guaranteed.

  • 360 degree seamless technology construction
  • Moisture wicking transport system

  • Ergonomically designed, moving with your body
  • Improved core temperature control

  • Runderwear™ fabric is lightweight and durable.

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Chafe free

Runderwear is engineered with seameless technology which reduces friction against the skin and keeps you chafe-free.

Wicks Sweat

Using the latest technical fabrics, Runderwear wicks moisture away quickly from the skin helping to keep you dry and comfortable.

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Lasting Durability

Our superior flat-locked edging helps keep our product strong and long-lasting whilst staying in place to help prevent and rubbing. 


Carefully designed perforations in the fabric allow air to circulate - giving you breathability where you need it most.

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“If you are fed up of your pants going off piste when you run, give the Runderwear range a go. Seamless technology for optimum comfort and pants that don’t move - perfect. We love them!”


"Designed specifically as underwear for runners these briefs provide great support as well as comfort. Constructed with a 360 degree seamless fit makes them sit against the skin beautifully, totally eliminating the chance of chafing as you run."


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