Engineered Foot Protection

TRMX Inside
TRMX Outside
  • Constructed with THORLON® blended with THOR•WICK® COOL 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.

  • Unique padding specifically engineered for trail running, clinically shown to reduce blisters, pain, pressures and moisture.

  • Low profile toe seam won’t rub or irritate feet.

See the Outside
Beyond Socks

For Feet That Hurt

During or after your activity

Learn More
Beyond Socks

For Feet That Do Not Hurt

During or after your activity

Learn More

Your Feet Will Feel Better Or Your Money Back®

Outdoor Trail Running socks

A Sport that’s Tough on Your Feet

Trail running’s popularity is exploding—it’s a great form of exercise and an opportunity to meet personal challenges and surpass personal “bests.” But running up and down trails, pounding the rocks, slogging through dirt and mud, kicking up dust and dealing with the whims of the weather all take a toll on your feet. In fact, the Institute for Preventive Foot Health/NPD 2012 National Foot Health Assessment has shown that after marathoners, trail runners are more likely than any other sport enthusiast to experience foot conditions, especially blisters

“I walk/run on a dirt/gravel road and was looking for a way not to feel all the rocks in the road. These socks are so good at cushioning that I want to wear them all the time on our farm.” Phileta R.

The Right Gear is Key

Staying on your feet and on the trail requires more than good conditioning. It takes gear that’s comfortable, protects your feet and won’t let you down. Painful feet or a blister will slow you down and take a lot of the joy out of your excursion. The right shoes are important, and many manufacturers now offer a variety of all-terrain shoes to choose from. But shoes are only part of the story for off-road running. The right padded socks are also critical—and here you have only one choice if you want the best possible foot protection and comfort: Thorlos clinically-tested (CTPS) trail running socks. They will protect your feet inside your running shoe and out—the top of the padded sock has a special, one and a half -inch, snug-fit ribbed top to keep dirt and debris from entering the padded sock as you run.

“I've run thousands of miles with these trail running socks, and have tried numerous other types of socks made for trail running; these are hands down the best. The moderate cushion (medium thickness) is perfect for all conditions.” Todd S.

How Thorlos Help

Thorlos clinically-tested padding provides your feet with maximum protection. It helps reduce impact from rocks, dirt and other trail debris, and the shear forces that can lead to blisters and other injuries to the skin and soft tissues of your feet during a trail run. Made of made with our exclusive THORLON yarn and THOR•WICK® COOL fiber, Thorlos also wicks moisture away better, further protecting against blisters and other foot conditions that could interfere with your comfort and enjoyment.

“Used these with new hiking boots in August. No blisters!” Linda J.

Clinically-Tested Padding

Thorlos clinically-tested padded trail running socks are recommended if you experience foot pain or want to help prevent any foot conditions during or after running. The padding is placed precisely where your foot needs protection, and has been clinically shown to reduce blisters, pain, pressures and moisture:

Ball and heel padding: Protects the ball of the foot from the shearing and impact forces that occur while running on rough terrain. 

Toe padding: Protects against banging of the toes in the front of your trail running shoe when you’re going downhill.

“They are extremely comfortable and provide the necessary support in all of the right spots of your feet. Amazing is all I can say and is the reason I bought more and will continue to buy more as long as Thorlo continues to offer them.” Eric P.

Curious but not yet convinced whether Thorlos CTPS can help you address your foot pain? We invite you to try your first pair free…just paying shipping and handling.

Click this link to see our FIRST PAIR FREE OFFER.

Thorlos Lite Padded Socks

If your feet don’t hurt during or after trail running, we recommend our Experia® brand, which provides more protection and comfort than other thin socks on the market. Experia comes in 12 colors and offers lightweight protection with an aerodynamic fit.

30-Day Guarantee Brand Promise

Our promise to you: Your feet will feel better or your money back®!

“The cushion is great for trail running. Cheaper socks just do not protect the feet on rough dirt trails like Thorlo socks do.”  Ken O.

Reviews for Thorlos TRAIL RUNNING

  • 5 out of 5

    Style: XCCU

    Best socks for walking and working out at the gym!

    02/01/16 | By

    I don't exercise or walk my usual 3-5 miles without my Thorlo socks! I have them in all colors and have also given them to friends as gifts. Thank you!

  • 5 out of 5

    Style: XCCU

    Best socks for gym or home

    02/01/16 | By

    I wear these with MY NB Minimus training shoes and they are a great fit. Would recommend them to everyone. Have over 2 dozen Thorlos.

  • 5 out of 5

    Style: XCCU

    Very comfortable for running and walking

    01/30/16 | By

    These socks have a great fit, great look and feel.

  • 3 out of 5

    Style: TRMX

    Use at the gym.

    01/23/16 | By

    Toes wearing thin after only a month. Disappointing.

  • 5 out of 5

    Style: XCCU

    Great for all purposes

    01/22/16 | By

    I wear these for running, pickleball, and everyday use. Great comfort and wonderful colors!

  • 5 out of 5

    Style: XCCU

    well made and comfortable!

    01/18/16 | By

    cushion in all the right places without too much bulk. keep my feet warm without being sweaty.

  • 5 out of 5

    Style: XWCU

    Best socks ever!!

    01/17/16 | By

    Love them, they are very comfortable and provide the right cushioning. I forget when wearing them with my non running sneakers how snug they are with my true to size foot. Def my favorite by far!!

  • 5 out of 5

    Style: XWCU

    Mikey loves them!

    01/17/16 | By

    Husband loves these socks. They are the new family sock ware.

  • 5 out of 5

    Style: XCMU

    Loves for everyday

    01/17/16 | By

    Very comfortable

  • 5 out of 5

    Style: XCXU

    Best socks for work

    01/16/16 | By

    My feet don't feel tired and they stay dry