Ultra Light Runner (Pulse) - No Show

168 reviews


Ultra Light Runner (Pulse) - No Show

168 reviews

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  • Go for a run without anything weighing you down. Our Ultra Light no-show runner gives you the lightest and lowest fit, without sacrificing the support and protection you need.

    • Our patented Full Contact Fit® hugs the contours of your foot and stays put — ensuring loose socks won’t rub you the wrong way.
    • Flat knit design for zero bulk.
    • Fully vented top for maximum breathability.
    • No-show height that won’t fall down into your shoe.
    • No cushioning in the footbed.
    Super-fine Merino Wool 66%
    Nylon 27%
    Polyester 5%
    Lycra 2%

Designed to be the best socks you've ever worn.


Moisture Wicking

Designed for stay-dry breathability & performance


Full Contact Fit

No uncomfortable bunching, slipping, or rubbing


Smart Cushioning

Extra padding in active zones: toe, arch, & heel


2-Year Warranty

Quality-made in the USA & guaranteed to last

Merino Wool

All our socks are made with 18.5m superfine knit, suit-grade performance Merino wool.

Odor Resistant



Omega Performance Yarn

Our custom blend of man-made fibers selected for the best breathability and fit.



Moisture Wicking

Customer Reviews
4.9 Based on 168 Reviews
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ws f.
United States United States
Most Comfortable Socks EVER!

Great Fit! So comfortable that you don’t even know you’re wearing socks! Started with your ski socks, love them-all day comfort, and this Ultra Light Runner is another Great Find!

Linnea B.
United States United States
These are my go-to running socks

Love these - they are my go-to running socks

Sonya T.
United States United States
Ultra Light Runners

These are my favorite running socks. The fit is perfect and the merino wool blend feels good against my skin and keeps my feet dry and comfortable. You can find cheaper running socks but they don’t last as long as FITs socks. I let my sister borrow a pair and I was afraid she would never give them back.

Renee K.
United States United States
perfect fit

Perfect fit and truly comfortable.

Matt E.
United States United States
The best running socks.

I’ve worn Fits light hikers for years and recently tried the ultra light runners. They’re perfect. Comfortable, breathable and you can feel the quality.

Virginia H.
United States United States
Ultra light sock

I absolutely love my socks. They’re just right there not too thick they’re not too thin they give me the support that I need. Let me know when they go on sale so I can get some more.

Ryan A.
United States United States
Great Socks

These are really high quality socks, very comfortable and you can tell the material is a step up from what you will find off the shelf. I will be buying more.

Lisa M.
United States United States
for the run of it all!

LOVE these for running. I got a pair for christmas from my parents and had to get 2 more pairs!



The Perfect Fit Starts With the Right Size.

Your sock size shouldn’t be a guessing game. Our socks range from small to double XL, but the best way to know the perfect fit for you is to match your shoe size to the chart on the left. That way, you’ll know the size you select will give you the fit and feel you expect.

Between sizes? Go with your gut, but rest assured that your socks will still fit great. If you receive your order and find yourself wishing you’d gone up or down a size, just let us know. We’ll happily send you replacements for your preferred size.

Concerned about laundry mix-ups? All FITS® socks are coordinated by color and size, based on the colors you see on the size chart. So, you won’t have to worry about mixing up your sizes with the other FITS® wearers in your home. (But stray socks mysteriously going missing in the dryer? Unfortunately, we can’t help with that.)

Questions? Let’s talk.