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Unisex XFCU Running Lite Cushion Low Cut Sock

  • Length: Low Cut
  • Cushion: Lite Cushion
  • Fiber Contents: 55% Nylon , 42% Polyester , 3% Elastic

Experia Fierce -   Get Thorlo's performance, durability and quality at a price you'll appreciate.  A sock Made in the USA and one that will perform mile after mile, with a lifetime guarantee

Product details below

Unique padding specifically designed for Running

The Design of Thorlos Padded Running Socks

Insights into the design, development and testing of Thorlos activity-specific, clinically-tested padded running socks from David Varsik, THORLO's senior design engineer.

What Independent Clinical Studies Say About Thorlos

Thorlos padding has been the subject of eight independent clinical research studies that were published in peer-reviewed medical journals. The results showed the proprietary padding reduces foot pain, blisters and other foot conditions, pressures on the foot and moisture.


  • Hydrophobic polyester
  • Enhanced moisture transfer
  • Quick drying
  • Reinforced strike zones
  • Glove-like fit

Product Details

  • Length: Low Cut
  • Cushion: Lite Cushion
  • Fiber Contents: 55% Nylon , 42% Polyester , 3% Elastic
  • Care instructions: For longer product life, maximum protection and comfort, wash and dry inside out (to fluff up the pads) using liquid fabric softener after each use (to lubricate the fibers for longer life). For optimal benefits, liquid fabric softeners are always recommended. Do Not Bleach. Wash Normal: 105F/40C. Dry Normal Medium. Do Not Dry Clean. Do Not Iron.
  • Proudly made in the USA

3 Reviews

3/5 overall rating
  • 1/5



    I have worn Thorlos socks for about 15 years. These are by far the worst. They are slippery, they make my feet sweat then get cold, they pick up every speck of dirt and are almost impossible to clean. Do not waste your money on the XFCU Running Lite Cushion Low Cut Sock.

  • 3/5

    Less cushion than expected.


    I purchased these to replace the T1CCU tennis sock I've been wearing for the past three years (12 pair rotated. Used daily for tennis, walking, running. Can't beat that type of longevity, but finally the elastic is failing). The XFCU is described as thin cushion as was the T1CCU. I wanted a black sock or I would've ordered the T1CCU. But it no longer comes in black. Unfortunately the thin cushion on the XFCU is really thin, like almost non-existent. Thanks to Thorlo's return policy they went back for a full refund.

  • 5/5

    The greatest socks for anything u do.


    Like a new person. I've been wearing thorlo for over 20 years . I will never put another brand of any sock on my feet, ever!!