Ultra Light Runner (Pulse) - No Show

174 reviews

Ultra Light Runner (Pulse) - No Show

174 reviews

Size Guide
Free Shipping On Orders $60+
Free Returns
  • 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 174 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Sally S.
United States
Best socks ever!

I love Fits! My feet aren't sweaty when I take them off and that's saying a lot with hot flashes and 100° temps!

Debra F.
United States United States
Perfect Fit_Great Wick

The ultra light runner works perfectly with my snuck exercise shoes, where there’s not much room for extra fabric. They wick away moisture and my feet are dry, which means I’m not cold!

Cheryl F.
United States United States
Tight fit

Socks are definitely great material & look like they will last a long time. These are just a little bit tight, I will need to size up next time. Would definitely buy again.

Will G.
United States United States
Great socks great fit

Love them! They fit well and don’t roll up in my shoes. Very cool during the summer.

Mara T.
United States United States

Awesome fit! Love the ultra thin!

Robert K.
United States United States
I love my Fits!

The fit is reliable and the high wool percentage is very comfy on my feet.

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



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.