TRMX Trail Running Socks Foot Protection with THOR•LON® and COOLMAX® fiber

  1. $15.99
  2. Size Chart | Fitting Guide

Your Feet will Feel Better
or Your Money Back®

Designed for feet that hurt. Enjoying running off road, on most terrains and in moderate weather conditions resulting in low to moderate stress on the feet. Specifically engineered to deliver protection and comfort in the critical strike zones for any trail runner prone to blisters, foot pain or discomfort.

  • Constructed with THORLON® blended with COOLMAX® fibers for superior softness, resilience, durability and extra moisture-wicking for drier, cooler, better feeling feet.
  • Cushioned instep and arch for a better fit, more support and less pressure on the feet for a more comfortable run.
  • Low profile toe seam won’t rub or irritate the feet.
  • Unique padding specifically engineered for trail running, clinically shown to reduce blisters, pain, pressures and moisture.

Fiber Contents | 27% Exclusive THOR•LON® Acrylic | 4% Spandex | 55% CoolMax® | 14% Nylon

Reviews for Thorlos TRMX

Customer Reviews

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  • 2/ 5

    Smallest size is too big

    01/31/15 | By

    My thorlos hiking socks fit and feel great. These unisex socks are way to big. I wear a 6.5 shoe and these say for 6.5. Love the feel though.

  • 5/ 5

    The Best

    12/18/14 | By

    Great running sock. By far the best I've ever had.

  • 2/ 5

    Too Small

    07/19/14 | By

    Listed for large size feet, but they are really tight. My shoe size is 12 1/2 to 13.

  • 5/ 5

    Great Sailing Socks

    07/07/14 | By

    Performs well, even when wet. Dries fast while on feet, and did not cause blisters while wet.

  • 5/ 5

    I use them for golfing great

    07/06/14 | By

    I love them because I have bad feet

  • 5/ 5


    07/06/14 | By

    very good for racing

  • 4/ 5

    Prefer a little more padding

    06/27/14 | By

    Personal opinion only! I wlike the thicker running socks even for running in my Hoka's. I realize that opinions are like a$$h***s (everyone has one and they mostly stink). I did not swear off running in these because, I would hate to spend money and be so pig headed, that I would pitch them. No I will wear them out and hope that I aqquire a taste for them. If blisters occur, then I will admit defeat (pun not intended).

  • 5/ 5

    Best socks ever.

    06/27/14 | By

    I started wearing Thorios about six months ago and they are hands down the best socks I have ever worn. The TRMX are a little thicker than my others and offer more cushion and they are great socks. I don't ever see myself wearing another brand of socks.

  • 5/ 5

    Great socks

    06/22/14 | By

    Wish I could afford more!

  • 5/ 5

    Great short hiking socks

    06/08/14 | By

    Always loved the crew version so these are a welcome add by Thorlo

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